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Finding the Fourth Proportional to 394,446.80, 592,195.08 and 207,589.52

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Solution

The fourth proportional to 394,446.80, 592,195.08 and 207,589.52 is: 311,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,446.80 : 592,195.08 = 207,589.52 : x
  2. Step 2: Convert to fraction form
    394,446.80/592,195.08 = 207,589.52/x
  3. Step 3: Cross multiply
    394,446.80x = 592,195.08 × 207,589.52
  4. Step 4: Simplify right side
    394,446.80x = 122,933,489,442.59
  5. Step 5: Solve for x
    x = 122,933,489,442.59/394,446.80
  6. Step 6: Final answer
    x = 311,660.51

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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.