Finding the Fourth Proportional to 1,136,949.09, 1,568,948.54 and 627,640.53
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Solution
The fourth proportional to 1,136,949.09, 1,568,948.54 and 627,640.53 is: 866,121.18
Step by Step Solution
- Step 1: Write the proportion equation
1,136,949.09 : 1,568,948.54 = 627,640.53 : x - Step 2: Convert to fraction form
1,136,949.09/1,568,948.54 = 627,640.53/x - Step 3: Cross multiply
1,136,949.09x = 1,568,948.54 × 627,640.53 - Step 4: Simplify right side
1,136,949.09x = 984,735,685,343.58 - Step 5: Solve for x
x = 984,735,685,343.58/1,136,949.09 - Step 6: Final answer
x = 866,121.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.