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Finding the Fourth Proportional to 331,431.60, 497,147.40 and 182,132.40

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Solution

The fourth proportional to 331,431.60, 497,147.40 and 182,132.40 is: 273,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,431.60 : 497,147.40 = 182,132.40 : x
  2. Step 2: Convert to fraction form
    331,431.60/497,147.40 = 182,132.40/x
  3. Step 3: Cross multiply
    331,431.60x = 497,147.40 × 182,132.40
  4. Step 4: Simplify right side
    331,431.60x = 90,546,649,115.76
  5. Step 5: Solve for x
    x = 90,546,649,115.76/331,431.60
  6. Step 6: Final answer
    x = 273,198.60

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1.5x scale

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.