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Finding the Fourth Proportional to 317,059.28, 475,589.82 and 80,402.12

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Solution

The fourth proportional to 317,059.28, 475,589.82 and 80,402.12 is: 120,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,059.28 : 475,589.82 = 80,402.12 : x
  2. Step 2: Convert to fraction form
    317,059.28/475,589.82 = 80,402.12/x
  3. Step 3: Cross multiply
    317,059.28x = 475,589.82 × 80,402.12
  4. Step 4: Simplify right side
    317,059.28x = 38,238,429,778.42
  5. Step 5: Solve for x
    x = 38,238,429,778.42/317,059.28
  6. Step 6: Final answer
    x = 120,603.41

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1.5x scale

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.