Question: The Battle of Prokhorovka was part of the larger engagement on the city how far from Moscow?

Related documents: [0]  [DOC] The Battle of Prokhorovka was fought on 12 July 1943 near Prokhorovka, 87 km southeast of Kursk in the Soviet Union, during the Second World War. Taking place on the Eastern Front, the engagement was part of the wider Battle of Kursk, and occurred when the 5th Guards Tank Army of the Soviet Red Army attacked the II SS-Panzer Corps of the German Wehrmacht in one of the largest tank battles in military history. [END] 
[1]  [DOC] The Battle of Kursk was a Second World War engagement between German and Soviet forces on the Eastern Front near Kursk (450 km south-west of Moscow) in the Soviet Union during July and August 1943. The battle began with the launch of the German offensive, Operation Citadel (German: "Unternehmen Zitadelle" ), on 5 July, which had the objective of pinching off the Kursk salient with attacks on the base of the salient from north and south simultaneously. After the German offensive stalled on the northern side of the salient, on 12 July the Soviets commenced their Kursk Strategic Offensive Operation with the launch of Operation Kutuzov (Russian: Кутузов ) against the rear of the German forces in the northern side. On the southern side, the Soviets also launched powerful counterattacks the same day, one of which led to a large armoured clash, the Battle of Prokhorovka. On 3 August, the Soviets began the second phase of the Kursk Strategic Offensive Operation with the launch of Operation Polkovodets Rumyantsev (Russian: Полководец Румянцев ) against the German forces in the southern side of the Kursk salient. [END]  
Answer: 450 km
450 km