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Finding the Fourth Proportional to 567,342.60, 782,937.54 and 312,694.44

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Solution

The fourth proportional to 567,342.60, 782,937.54 and 312,694.44 is: 431,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,342.60 : 782,937.54 = 312,694.44 : x
  2. Step 2: Convert to fraction form
    567,342.60/782,937.54 = 312,694.44/x
  3. Step 3: Cross multiply
    567,342.60x = 782,937.54 × 312,694.44
  4. Step 4: Simplify right side
    567,342.60x = 244,820,215,625.28
  5. Step 5: Solve for x
    x = 244,820,215,625.28/567,342.60
  6. Step 6: Final answer
    x = 431,520.95

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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.