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Finding the Fourth Proportional to 571,357.28, 856,912.90 and 234,067.20

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Solution

The fourth proportional to 571,357.28, 856,912.90 and 234,067.20 is: 351,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,357.28 : 856,912.90 = 234,067.20 : x
  2. Step 2: Convert to fraction form
    571,357.28/856,912.90 = 234,067.20/x
  3. Step 3: Cross multiply
    571,357.28x = 856,912.90 × 234,067.20
  4. Step 4: Simplify right side
    571,357.28x = 200,575,203,146.88
  5. Step 5: Solve for x
    x = 200,575,203,146.88/571,357.28
  6. Step 6: Final answer
    x = 351,050.40

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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.