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Finding the Fourth Proportional to 392,587.60, 541,773.48 and 222,824.56

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Solution

The fourth proportional to 392,587.60, 541,773.48 and 222,824.56 is: 307,499.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,587.60 : 541,773.48 = 222,824.56 : x
  2. Step 2: Convert to fraction form
    392,587.60/541,773.48 = 222,824.56/x
  3. Step 3: Cross multiply
    392,587.60x = 541,773.48 × 222,824.56
  4. Step 4: Simplify right side
    392,587.60x = 120,720,437,300.67
  5. Step 5: Solve for x
    x = 120,720,437,300.67/392,587.60
  6. Step 6: Final answer
    x = 307,499.36

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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.