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Finding the Fourth Proportional to 488,067.89, 731,930.31 and 146,409.44

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Solution

The fourth proportional to 488,067.89, 731,930.31 and 146,409.44 is: 219,562.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,067.89 : 731,930.31 = 146,409.44 : x
  2. Step 2: Convert to fraction form
    488,067.89/731,930.31 = 146,409.44/x
  3. Step 3: Cross multiply
    488,067.89x = 731,930.31 × 146,409.44
  4. Step 4: Simplify right side
    488,067.89x = 107,161,503,146.48
  5. Step 5: Solve for x
    x = 107,161,503,146.48/488,067.89
  6. Step 6: Final answer
    x = 219,562.70

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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.