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Finding the Fourth Proportional to 261,387.40, 392,372.70 and 244,255.90

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Solution

The fourth proportional to 261,387.40, 392,372.70 and 244,255.90 is: 366,656.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,387.40 : 392,372.70 = 244,255.90 : x
  2. Step 2: Convert to fraction form
    261,387.40/392,372.70 = 244,255.90/x
  3. Step 3: Cross multiply
    261,387.40x = 392,372.70 × 244,255.90
  4. Step 4: Simplify right side
    261,387.40x = 95,839,346,973.93
  5. Step 5: Solve for x
    x = 95,839,346,973.93/261,387.40
  6. Step 6: Final answer
    x = 366,656.34

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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.