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Finding the Fourth Proportional to 482,458.30, 665,872.18 and 267,667.56

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Solution

The fourth proportional to 482,458.30, 665,872.18 and 267,667.56 is: 369,425.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,458.30 : 665,872.18 = 267,667.56 : x
  2. Step 2: Convert to fraction form
    482,458.30/665,872.18 = 267,667.56/x
  3. Step 3: Cross multiply
    482,458.30x = 665,872.18 × 267,667.56
  4. Step 4: Simplify right side
    482,458.30x = 178,232,381,692.48
  5. Step 5: Solve for x
    x = 178,232,381,692.48/482,458.30
  6. Step 6: Final answer
    x = 369,425.46

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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.