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Finding the Fourth Proportional to 618,229.60, 926,469.60 and 542,996.80

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Solution

The fourth proportional to 618,229.60, 926,469.60 and 542,996.80 is: 813,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,229.60 : 926,469.60 = 542,996.80 : x
  2. Step 2: Convert to fraction form
    618,229.60/926,469.60 = 542,996.80/x
  3. Step 3: Cross multiply
    618,229.60x = 926,469.60 × 542,996.80
  4. Step 4: Simplify right side
    618,229.60x = 503,070,028,097.28
  5. Step 5: Solve for x
    x = 503,070,028,097.28/618,229.60
  6. Step 6: Final answer
    x = 813,726.86

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1.5x scale

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.