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Finding the Fourth Proportional to 423,373.78, 584,250.87 and 229,781.83

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Solution

The fourth proportional to 423,373.78, 584,250.87 and 229,781.83 is: 317,096.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,373.78 : 584,250.87 = 229,781.83 : x
  2. Step 2: Convert to fraction form
    423,373.78/584,250.87 = 229,781.83/x
  3. Step 3: Cross multiply
    423,373.78x = 584,250.87 × 229,781.83
  4. Step 4: Simplify right side
    423,373.78x = 134,250,234,087.69
  5. Step 5: Solve for x
    x = 134,250,234,087.69/423,373.78
  6. Step 6: Final answer
    x = 317,096.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.