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Finding the Fourth Proportional to 571,105.42, 856,471.25 and 267,405.57

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Solution

The fourth proportional to 571,105.42, 856,471.25 and 267,405.57 is: 401,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,105.42 : 856,471.25 = 267,405.57 : x
  2. Step 2: Convert to fraction form
    571,105.42/856,471.25 = 267,405.57/x
  3. Step 3: Cross multiply
    571,105.42x = 856,471.25 × 267,405.57
  4. Step 4: Simplify right side
    571,105.42x = 229,025,183,463.38
  5. Step 5: Solve for x
    x = 229,025,183,463.38/571,105.42
  6. Step 6: Final answer
    x = 401,020.86

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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.