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Finding the Fourth Proportional to 392,761.14, 541,996.20 and 240,054.90

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Solution

The fourth proportional to 392,761.14, 541,996.20 and 240,054.90 is: 331,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,761.14 : 541,996.20 = 240,054.90 : x
  2. Step 2: Convert to fraction form
    392,761.14/541,996.20 = 240,054.90/x
  3. Step 3: Cross multiply
    392,761.14x = 541,996.20 × 240,054.90
  4. Step 4: Simplify right side
    392,761.14x = 130,108,843,591.38
  5. Step 5: Solve for x
    x = 130,108,843,591.38/392,761.14
  6. Step 6: Final answer
    x = 331,267.10

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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.