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Finding the Fourth Proportional to 400,437.92, 552,593.40 and 247,414.88

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Solution

The fourth proportional to 400,437.92, 552,593.40 and 247,414.88 is: 341,425.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,437.92 : 552,593.40 = 247,414.88 : x
  2. Step 2: Convert to fraction form
    400,437.92/552,593.40 = 247,414.88/x
  3. Step 3: Cross multiply
    400,437.92x = 552,593.40 × 247,414.88
  4. Step 4: Simplify right side
    400,437.92x = 136,719,829,749.79
  5. Step 5: Solve for x
    x = 136,719,829,749.79/400,437.92
  6. Step 6: Final answer
    x = 341,425.78

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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.