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Finding the Fourth Proportional to 368,652.60, 551,942.10 and 331,327.80

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Solution

The fourth proportional to 368,652.60, 551,942.10 and 331,327.80 is: 496,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,652.60 : 551,942.10 = 331,327.80 : x
  2. Step 2: Convert to fraction form
    368,652.60/551,942.10 = 331,327.80/x
  3. Step 3: Cross multiply
    368,652.60x = 551,942.10 × 331,327.80
  4. Step 4: Simplify right side
    368,652.60x = 182,873,761,720.38
  5. Step 5: Solve for x
    x = 182,873,761,720.38/368,652.60
  6. Step 6: Final answer
    x = 496,059.87

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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.