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Finding the Fourth Proportional to 398,612.70, 597,789.45 and 132,327.90

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Solution

The fourth proportional to 398,612.70, 597,789.45 and 132,327.90 is: 198,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,612.70 : 597,789.45 = 132,327.90 : x
  2. Step 2: Convert to fraction form
    398,612.70/597,789.45 = 132,327.90/x
  3. Step 3: Cross multiply
    398,612.70x = 597,789.45 × 132,327.90
  4. Step 4: Simplify right side
    398,612.70x = 79,104,222,560.66
  5. Step 5: Solve for x
    x = 79,104,222,560.66/398,612.70
  6. Step 6: Final answer
    x = 198,448.83

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