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Finding the Fourth Proportional to 481,418.64, 664,329.60 and 266,546.70

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Solution

The fourth proportional to 481,418.64, 664,329.60 and 266,546.70 is: 367,818.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,418.64 : 664,329.60 = 266,546.70 : x
  2. Step 2: Convert to fraction form
    481,418.64/664,329.60 = 266,546.70/x
  3. Step 3: Cross multiply
    481,418.64x = 664,329.60 × 266,546.70
  4. Step 4: Simplify right side
    481,418.64x = 177,074,862,592.32
  5. Step 5: Solve for x
    x = 177,074,862,592.32/481,418.64
  6. Step 6: Final answer
    x = 367,818.88

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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.