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Finding the Fourth Proportional to 571,107.72, 856,474.72 and 267,407.86

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Solution

The fourth proportional to 571,107.72, 856,474.72 and 267,407.86 is: 401,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,107.72 : 856,474.72 = 267,407.86 : x
  2. Step 2: Convert to fraction form
    571,107.72/856,474.72 = 267,407.86/x
  3. Step 3: Cross multiply
    571,107.72x = 856,474.72 × 267,407.86
  4. Step 4: Simplify right side
    571,107.72x = 229,028,072,019.30
  5. Step 5: Solve for x
    x = 229,028,072,019.30/571,107.72
  6. Step 6: Final answer
    x = 401,024.30

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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.