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Finding the Fourth Proportional to 577,761.12, 797,327.24 and 316,132.13

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Solution

The fourth proportional to 577,761.12, 797,327.24 and 316,132.13 is: 436,271.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,761.12 : 797,327.24 = 316,132.13 : x
  2. Step 2: Convert to fraction form
    577,761.12/797,327.24 = 316,132.13/x
  3. Step 3: Cross multiply
    577,761.12x = 797,327.24 × 316,132.13
  4. Step 4: Simplify right side
    577,761.12x = 252,060,753,120.92
  5. Step 5: Solve for x
    x = 252,060,753,120.92/577,761.12
  6. Step 6: Final answer
    x = 436,271.57

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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.