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Finding the Fourth Proportional to 482,280.85, 665,515.13 and 267,412.96

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Solution

The fourth proportional to 482,280.85, 665,515.13 and 267,412.96 is: 369,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,280.85 : 665,515.13 = 267,412.96 : x
  2. Step 2: Convert to fraction form
    482,280.85/665,515.13 = 267,412.96/x
  3. Step 3: Cross multiply
    482,280.85x = 665,515.13 × 267,412.96
  4. Step 4: Simplify right side
    482,280.85x = 177,967,370,838.09
  5. Step 5: Solve for x
    x = 177,967,370,838.09/482,280.85
  6. Step 6: Final answer
    x = 369,011.90

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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.