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Finding the Fourth Proportional to 423,700.85, 584,564.85 and 239,914.38

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Solution

The fourth proportional to 423,700.85, 584,564.85 and 239,914.38 is: 331,001.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,700.85 : 584,564.85 = 239,914.38 : x
  2. Step 2: Convert to fraction form
    423,700.85/584,564.85 = 239,914.38/x
  3. Step 3: Cross multiply
    423,700.85x = 584,564.85 × 239,914.38
  4. Step 4: Simplify right side
    423,700.85x = 140,245,513,557.54
  5. Step 5: Solve for x
    x = 140,245,513,557.54/423,700.85
  6. Step 6: Final answer
    x = 331,001.26

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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.