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Finding the Fourth Proportional to 532,171.46, 798,490.92 and 279,393.21

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Solution

The fourth proportional to 532,171.46, 798,490.92 and 279,393.21 is: 419,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,171.46 : 798,490.92 = 279,393.21 : x
  2. Step 2: Convert to fraction form
    532,171.46/798,490.92 = 279,393.21/x
  3. Step 3: Cross multiply
    532,171.46x = 798,490.92 × 279,393.21
  4. Step 4: Simplify right side
    532,171.46x = 223,092,941,294.65
  5. Step 5: Solve for x
    x = 223,092,941,294.65/532,171.46
  6. Step 6: Final answer
    x = 419,212.52

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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.