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Finding the Fourth Proportional to 482,020.84, 665,170.50 and 267,155.56

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Solution

The fourth proportional to 482,020.84, 665,170.50 and 267,155.56 is: 368,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,020.84 : 665,170.50 = 267,155.56 : x
  2. Step 2: Convert to fraction form
    482,020.84/665,170.50 = 267,155.56/x
  3. Step 3: Cross multiply
    482,020.84x = 665,170.50 × 267,155.56
  4. Step 4: Simplify right side
    482,020.84x = 177,703,997,422.98
  5. Step 5: Solve for x
    x = 177,703,997,422.98/482,020.84
  6. Step 6: Final answer
    x = 368,664.55

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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.