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Finding the Fourth Proportional to 331,720.53, 496,851.44 and 274,141.87

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Solution

The fourth proportional to 331,720.53, 496,851.44 and 274,141.87 is: 410,610.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,720.53 : 496,851.44 = 274,141.87 : x
  2. Step 2: Convert to fraction form
    331,720.53/496,851.44 = 274,141.87/x
  3. Step 3: Cross multiply
    331,720.53x = 496,851.44 × 274,141.87
  4. Step 4: Simplify right side
    331,720.53x = 136,207,781,503.08
  5. Step 5: Solve for x
    x = 136,207,781,503.08/331,720.53
  6. Step 6: Final answer
    x = 410,610.05

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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.