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Finding the Fourth Proportional to 527,355.52, 791,024.92 and 127,999.60

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Solution

The fourth proportional to 527,355.52, 791,024.92 and 127,999.60 is: 191,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,355.52 : 791,024.92 = 127,999.60 : x
  2. Step 2: Convert to fraction form
    527,355.52/791,024.92 = 127,999.60/x
  3. Step 3: Cross multiply
    527,355.52x = 791,024.92 × 127,999.60
  4. Step 4: Simplify right side
    527,355.52x = 101,250,873,350.03
  5. Step 5: Solve for x
    x = 101,250,873,350.03/527,355.52
  6. Step 6: Final answer
    x = 191,997.37

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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.