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Finding the Fourth Proportional to 493,712.11, 681,318.76 and 267,357.61

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Solution

The fourth proportional to 493,712.11, 681,318.76 and 267,357.61 is: 368,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,712.11 : 681,318.76 = 267,357.61 : x
  2. Step 2: Convert to fraction form
    493,712.11/681,318.76 = 267,357.61/x
  3. Step 3: Cross multiply
    493,712.11x = 681,318.76 × 267,357.61
  4. Step 4: Simplify right side
    493,712.11x = 182,155,755,321.76
  5. Step 5: Solve for x
    x = 182,155,755,321.76/493,712.11
  6. Step 6: Final answer
    x = 368,951.36

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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.