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Finding the Fourth Proportional to 482,480.72, 665,834.04 and 267,613.76

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Solution

The fourth proportional to 482,480.72, 665,834.04 and 267,613.76 is: 369,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,480.72 : 665,834.04 = 267,613.76 : x
  2. Step 2: Convert to fraction form
    482,480.72/665,834.04 = 267,613.76/x
  3. Step 3: Cross multiply
    482,480.72x = 665,834.04 × 267,613.76
  4. Step 4: Simplify right side
    482,480.72x = 178,186,350,980.39
  5. Step 5: Solve for x
    x = 178,186,350,980.39/482,480.72
  6. Step 6: Final answer
    x = 369,312.89

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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.