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Finding the Fourth Proportional to 481,422.64, 664,309.60 and 266,508.88

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Solution

The fourth proportional to 481,422.64, 664,309.60 and 266,508.88 is: 367,752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,422.64 : 664,309.60 = 266,508.88 : x
  2. Step 2: Convert to fraction form
    481,422.64/664,309.60 = 266,508.88/x
  3. Step 3: Cross multiply
    481,422.64x = 664,309.60 × 266,508.88
  4. Step 4: Simplify right side
    481,422.64x = 177,044,407,469.25
  5. Step 5: Solve for x
    x = 177,044,407,469.25/481,422.64
  6. Step 6: Final answer
    x = 367,752.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.