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Finding the Fourth Proportional to 325,810.92, 490,936.11 and 267,942.90

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Solution

The fourth proportional to 325,810.92, 490,936.11 and 267,942.90 is: 403,739.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,810.92 : 490,936.11 = 267,942.90 : x
  2. Step 2: Convert to fraction form
    325,810.92/490,936.11 = 267,942.90/x
  3. Step 3: Cross multiply
    325,810.92x = 490,936.11 × 267,942.90
  4. Step 4: Simplify right side
    325,810.92x = 131,542,845,028.12
  5. Step 5: Solve for x
    x = 131,542,845,028.12/325,810.92
  6. Step 6: Final answer
    x = 403,739.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.