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Finding the Fourth Proportional to 681,654.34, 940,737.20 and 375,785.38

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Solution

The fourth proportional to 681,654.34, 940,737.20 and 375,785.38 is: 518,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,654.34 : 940,737.20 = 375,785.38 : x
  2. Step 2: Convert to fraction form
    681,654.34/940,737.20 = 375,785.38/x
  3. Step 3: Cross multiply
    681,654.34x = 940,737.20 × 375,785.38
  4. Step 4: Simplify right side
    681,654.34x = 353,515,286,182.14
  5. Step 5: Solve for x
    x = 353,515,286,182.14/681,654.34
  6. Step 6: Final answer
    x = 518,613.71

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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.