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Finding the Fourth Proportional to 482,325.72, 665,647.11 and 267,507.78

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Solution

The fourth proportional to 482,325.72, 665,647.11 and 267,507.78 is: 369,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,325.72 : 665,647.11 = 267,507.78 : x
  2. Step 2: Convert to fraction form
    482,325.72/665,647.11 = 267,507.78/x
  3. Step 3: Cross multiply
    482,325.72x = 665,647.11 × 267,507.78
  4. Step 4: Simplify right side
    482,325.72x = 178,065,780,659.52
  5. Step 5: Solve for x
    x = 178,065,780,659.52/482,325.72
  6. Step 6: Final answer
    x = 369,181.60

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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.