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Finding the Fourth Proportional to 394,448.80, 592,198.08 and 207,591.52

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Solution

The fourth proportional to 394,448.80, 592,198.08 and 207,591.52 is: 311,663.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,448.80 : 592,198.08 = 207,591.52 : x
  2. Step 2: Convert to fraction form
    394,448.80/592,198.08 = 207,591.52/x
  3. Step 3: Cross multiply
    394,448.80x = 592,198.08 × 207,591.52
  4. Step 4: Simplify right side
    394,448.80x = 122,935,299,568.28
  5. Step 5: Solve for x
    x = 122,935,299,568.28/394,448.80
  6. Step 6: Final answer
    x = 311,663.52

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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.