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Finding the Fourth Proportional to 482,135.68, 665,302.30 and 267,257.40

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Solution

The fourth proportional to 482,135.68, 665,302.30 and 267,257.40 is: 368,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,135.68 : 665,302.30 = 267,257.40 : x
  2. Step 2: Convert to fraction form
    482,135.68/665,302.30 = 267,257.40/x
  3. Step 3: Cross multiply
    482,135.68x = 665,302.30 × 267,257.40
  4. Step 4: Simplify right side
    482,135.68x = 177,806,962,912.02
  5. Step 5: Solve for x
    x = 177,806,962,912.02/482,135.68
  6. Step 6: Final answer
    x = 368,790.30

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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.