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Finding the Fourth Proportional to 363,204.80, 543,770.40 and 321,732.80

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Solution

The fourth proportional to 363,204.80, 543,770.40 and 321,732.80 is: 481,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,204.80 : 543,770.40 = 321,732.80 : x
  2. Step 2: Convert to fraction form
    363,204.80/543,770.40 = 321,732.80/x
  3. Step 3: Cross multiply
    363,204.80x = 543,770.40 × 321,732.80
  4. Step 4: Simplify right side
    363,204.80x = 174,948,773,349.12
  5. Step 5: Solve for x
    x = 174,948,773,349.12/363,204.80
  6. Step 6: Final answer
    x = 481,680.79

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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.