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Finding the Fourth Proportional to 482,412.62, 665,770.29 and 267,621.88

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Solution

The fourth proportional to 482,412.62, 665,770.29 and 267,621.88 is: 369,340.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,412.62 : 665,770.29 = 267,621.88 : x
  2. Step 2: Convert to fraction form
    482,412.62/665,770.29 = 267,621.88/x
  3. Step 3: Cross multiply
    482,412.62x = 665,770.29 × 267,621.88
  4. Step 4: Simplify right side
    482,412.62x = 178,174,693,329.09
  5. Step 5: Solve for x
    x = 178,174,693,329.09/482,412.62
  6. Step 6: Final answer
    x = 369,340.87

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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.