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Finding the Fourth Proportional to 499,234.20, 748,851.30 and 449,467.80

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Solution

The fourth proportional to 499,234.20, 748,851.30 and 449,467.80 is: 674,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,234.20 : 748,851.30 = 449,467.80 : x
  2. Step 2: Convert to fraction form
    499,234.20/748,851.30 = 449,467.80/x
  3. Step 3: Cross multiply
    499,234.20x = 748,851.30 × 449,467.80
  4. Step 4: Simplify right side
    499,234.20x = 336,584,546,338.14
  5. Step 5: Solve for x
    x = 336,584,546,338.14/499,234.20
  6. Step 6: Final answer
    x = 674,201.70

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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.