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Finding the Fourth Proportional to 392,003.60, 588,005.40 and 234,150.80

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Solution

The fourth proportional to 392,003.60, 588,005.40 and 234,150.80 is: 351,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,003.60 : 588,005.40 = 234,150.80 : x
  2. Step 2: Convert to fraction form
    392,003.60/588,005.40 = 234,150.80/x
  3. Step 3: Cross multiply
    392,003.60x = 588,005.40 × 234,150.80
  4. Step 4: Simplify right side
    392,003.60x = 137,681,934,814.32
  5. Step 5: Solve for x
    x = 137,681,934,814.32/392,003.60
  6. Step 6: Final answer
    x = 351,226.20

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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.