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Finding the Fourth Proportional to 324,248.22, 485,375.76 and 276,418.53

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Solution

The fourth proportional to 324,248.22, 485,375.76 and 276,418.53 is: 413,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,248.22 : 485,375.76 = 276,418.53 : x
  2. Step 2: Convert to fraction form
    324,248.22/485,375.76 = 276,418.53/x
  3. Step 3: Cross multiply
    324,248.22x = 485,375.76 × 276,418.53
  4. Step 4: Simplify right side
    324,248.22x = 134,166,854,076.83
  5. Step 5: Solve for x
    x = 134,166,854,076.83/324,248.22
  6. Step 6: Final answer
    x = 413,778.23

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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.