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Finding the Fourth Proportional to 482,320.16, 665,635.92 and 267,480.80

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Solution

The fourth proportional to 482,320.16, 665,635.92 and 267,480.80 is: 369,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,320.16 : 665,635.92 = 267,480.80 : x
  2. Step 2: Convert to fraction form
    482,320.16/665,635.92 = 267,480.80/x
  3. Step 3: Cross multiply
    482,320.16x = 665,635.92 × 267,480.80
  4. Step 4: Simplify right side
    482,320.16x = 178,044,828,390.34
  5. Step 5: Solve for x
    x = 178,044,828,390.34/482,320.16
  6. Step 6: Final answer
    x = 369,142.41

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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.