Finding the Fourth Proportional to 1,172,778.66, 1,618,345.14 and 656,414.28
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Solution
The fourth proportional to 1,172,778.66, 1,618,345.14 and 656,414.28 is: 905,801.66
Step by Step Solution
- Step 1: Write the proportion equation
1,172,778.66 : 1,618,345.14 = 656,414.28 : x - Step 2: Convert to fraction form
1,172,778.66/1,618,345.14 = 656,414.28/x - Step 3: Cross multiply
1,172,778.66x = 1,618,345.14 × 656,414.28 - Step 4: Simplify right side
1,172,778.66x = 1,062,304,859,864.60 - Step 5: Solve for x
x = 1,062,304,859,864.60/1,172,778.66 - Step 6: Final answer
x = 905,801.66
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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.