Final answer:
Rick's retirement account was 440 times greater when he retired compared to when he started.
Step-by-step explanation:
To calculate how many times greater Rick's retirement account was when he retired compared to when he started, we can divide the final amount by the initial amount.
Final amount = $2.2 × 106
Initial amount = $5,000
Times greater = Final amount / Initial amount
Times greater = $2.2 × 106 / $5,000
Times greater = 440
Therefore, Rick's retirement account was 440 times greater when he retired compared to when he started.