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Finding the Fourth Proportional to 423,359.40, 584,326.56 and 253,691.96

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Solution

The fourth proportional to 423,359.40, 584,326.56 and 253,691.96 is: 350,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,359.40 : 584,326.56 = 253,691.96 : x
  2. Step 2: Convert to fraction form
    423,359.40/584,326.56 = 253,691.96/x
  3. Step 3: Cross multiply
    423,359.40x = 584,326.56 × 253,691.96
  4. Step 4: Simplify right side
    423,359.40x = 148,238,950,286.46
  5. Step 5: Solve for x
    x = 148,238,950,286.46/423,359.40
  6. Step 6: Final answer
    x = 350,149.19

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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.