To determine how much money each person in the group won, we need to divide the total prize amount by the number of people in the group.
Total prize amount = $4,500
Number of people in the group = 9
Now, we can calculate the amount each person won:
\[ \text{Amount per person} = \frac{\text{Total prize amount}}{\text{Number of people}} = \frac{4500}{9} = 500 \]
Thus, each person in the group won $500.