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Finding the Fourth Proportional to 502,686.75, 754,023.55 and 123,610.76

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Solution

The fourth proportional to 502,686.75, 754,023.55 and 123,610.76 is: 185,414.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,686.75 : 754,023.55 = 123,610.76 : x
  2. Step 2: Convert to fraction form
    502,686.75/754,023.55 = 123,610.76/x
  3. Step 3: Cross multiply
    502,686.75x = 754,023.55 × 123,610.76
  4. Step 4: Simplify right side
    502,686.75x = 93,205,424,073.40
  5. Step 5: Solve for x
    x = 93,205,424,073.40/502,686.75
  6. Step 6: Final answer
    x = 185,414.52

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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.