Finding the Fourth Proportional to 1,117,612.01, 1,542,320.70 and 627,687.53
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Solution
The fourth proportional to 1,117,612.01, 1,542,320.70 and 627,687.53 is: 866,217.84
Step by Step Solution
- Step 1: Write the proportion equation
1,117,612.01 : 1,542,320.70 = 627,687.53 : x - Step 2: Convert to fraction form
1,117,612.01/1,542,320.70 = 627,687.53/x - Step 3: Cross multiply
1,117,612.01x = 1,542,320.70 × 627,687.53 - Step 4: Simplify right side
1,117,612.01x = 968,095,466,369.14 - Step 5: Solve for x
x = 968,095,466,369.14/1,117,612.01 - Step 6: Final answer
x = 866,217.84
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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.