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Finding the Fourth Proportional to 489,067.20, 733,600.80 and 204,708.60

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Solution

The fourth proportional to 489,067.20, 733,600.80 and 204,708.60 is: 307,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,067.20 : 733,600.80 = 204,708.60 : x
  2. Step 2: Convert to fraction form
    489,067.20/733,600.80 = 204,708.60/x
  3. Step 3: Cross multiply
    489,067.20x = 733,600.80 × 204,708.60
  4. Step 4: Simplify right side
    489,067.20x = 150,174,392,726.88
  5. Step 5: Solve for x
    x = 150,174,392,726.88/489,067.20
  6. Step 6: Final answer
    x = 307,062.90

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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.