Is it possible to run three versions of Google Chrome? How might I run 3+ versions of google chrome so I can log into to 3 different google accounts.

More specifically I am looking to have separate icons in the dock for the 3 separate running applications.

How might I run duplicate and or copy versions of the same application.  The following linked question on SuperUser by Mark works for a lot of applications but not for Google Chrome.

It appears the following might work link.
Google Chrome Canary is a bleeding-edge version of Chrome which uses its own profile, so it can be run in parallel to a regular copy of Chrome. The Canary browser is the least tested version of Chrome in their development pipeline (Canary → dev → beta → stable), but contains the newest features. For this reason it may not always work as expected, or sometimes not at all. It receives updates every single day. This SO post describes it in more detail.