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Finding the Fourth Proportional to 317,763.38, 476,644.39 and 199,517.76

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Solution

The fourth proportional to 317,763.38, 476,644.39 and 199,517.76 is: 299,276.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,763.38 : 476,644.39 = 199,517.76 : x
  2. Step 2: Convert to fraction form
    317,763.38/476,644.39 = 199,517.76/x
  3. Step 3: Cross multiply
    317,763.38x = 476,644.39 × 199,517.76
  4. Step 4: Simplify right side
    317,763.38x = 95,099,020,510.57
  5. Step 5: Solve for x
    x = 95,099,020,510.57/317,763.38
  6. Step 6: Final answer
    x = 299,276.21

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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.