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Finding the Fourth Proportional to 425,909.43, 638,856.54 and 126,592.35

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Solution

The fourth proportional to 425,909.43, 638,856.54 and 126,592.35 is: 189,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,909.43 : 638,856.54 = 126,592.35 : x
  2. Step 2: Convert to fraction form
    425,909.43/638,856.54 = 126,592.35/x
  3. Step 3: Cross multiply
    425,909.43x = 638,856.54 × 126,592.35
  4. Step 4: Simplify right side
    425,909.43x = 80,874,350,711.47
  5. Step 5: Solve for x
    x = 80,874,350,711.47/425,909.43
  6. Step 6: Final answer
    x = 189,886.26

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