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Finding the Fourth Proportional to 445,071.16, 667,777.38 and 267,703.84

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Solution

The fourth proportional to 445,071.16, 667,777.38 and 267,703.84 is: 401,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,071.16 : 667,777.38 = 267,703.84 : x
  2. Step 2: Convert to fraction form
    445,071.16/667,777.38 = 267,703.84/x
  3. Step 3: Cross multiply
    445,071.16x = 667,777.38 × 267,703.84
  4. Step 4: Simplify right side
    445,071.16x = 178,766,568,891.14
  5. Step 5: Solve for x
    x = 178,766,568,891.14/445,071.16
  6. Step 6: Final answer
    x = 401,658.40

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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.