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Finding the Fourth Proportional to 457,866.25, 631,857.23 and 253,936.11

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Solution

The fourth proportional to 457,866.25, 631,857.23 and 253,936.11 is: 350,432.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,866.25 : 631,857.23 = 253,936.11 : x
  2. Step 2: Convert to fraction form
    457,866.25/631,857.23 = 253,936.11/x
  3. Step 3: Cross multiply
    457,866.25x = 631,857.23 × 253,936.11
  4. Step 4: Simplify right side
    457,866.25x = 160,451,367,061.58
  5. Step 5: Solve for x
    x = 160,451,367,061.58/457,866.25
  6. Step 6: Final answer
    x = 350,432.83

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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.