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Finding the Fourth Proportional to 437,691.89, 656,537.19 and 171,265.43

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Solution

The fourth proportional to 437,691.89, 656,537.19 and 171,265.43 is: 256,897.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,691.89 : 656,537.19 = 171,265.43 : x
  2. Step 2: Convert to fraction form
    437,691.89/656,537.19 = 171,265.43/x
  3. Step 3: Cross multiply
    437,691.89x = 656,537.19 × 171,265.43
  4. Step 4: Simplify right side
    437,691.89x = 112,442,120,873.66
  5. Step 5: Solve for x
    x = 112,442,120,873.66/437,691.89
  6. Step 6: Final answer
    x = 256,897.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.