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Finding the Fourth Proportional to 297,716.80, 446,575.20 and 269,723.20

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Solution

The fourth proportional to 297,716.80, 446,575.20 and 269,723.20 is: 404,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,716.80 : 446,575.20 = 269,723.20 : x
  2. Step 2: Convert to fraction form
    297,716.80/446,575.20 = 269,723.20/x
  3. Step 3: Cross multiply
    297,716.80x = 446,575.20 × 269,723.20
  4. Step 4: Simplify right side
    297,716.80x = 120,451,691,984.64
  5. Step 5: Solve for x
    x = 120,451,691,984.64/297,716.80
  6. Step 6: Final answer
    x = 404,584.80

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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.