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Finding the Fourth Proportional to 445,157.16, 667,906.56 and 267,789.84

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Solution

The fourth proportional to 445,157.16, 667,906.56 and 267,789.84 is: 401,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,157.16 : 667,906.56 = 267,789.84 : x
  2. Step 2: Convert to fraction form
    445,157.16/667,906.56 = 267,789.84/x
  3. Step 3: Cross multiply
    445,157.16x = 667,906.56 × 267,789.84
  4. Step 4: Simplify right side
    445,157.16x = 178,858,590,837.35
  5. Step 5: Solve for x
    x = 178,858,590,837.35/445,157.16
  6. Step 6: Final answer
    x = 401,787.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.