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Finding the Fourth Proportional to 394,906.20, 592,359.30 and 158,418.60

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Solution

The fourth proportional to 394,906.20, 592,359.30 and 158,418.60 is: 237,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,906.20 : 592,359.30 = 158,418.60 : x
  2. Step 2: Convert to fraction form
    394,906.20/592,359.30 = 158,418.60/x
  3. Step 3: Cross multiply
    394,906.20x = 592,359.30 × 158,418.60
  4. Step 4: Simplify right side
    394,906.20x = 93,840,731,002.98
  5. Step 5: Solve for x
    x = 93,840,731,002.98/394,906.20
  6. Step 6: Final answer
    x = 237,627.90

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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.