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Finding the Fourth Proportional to 404,874.10, 607,311.15 and 272,163.70

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Solution

The fourth proportional to 404,874.10, 607,311.15 and 272,163.70 is: 408,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,874.10 : 607,311.15 = 272,163.70 : x
  2. Step 2: Convert to fraction form
    404,874.10/607,311.15 = 272,163.70/x
  3. Step 3: Cross multiply
    404,874.10x = 607,311.15 × 272,163.70
  4. Step 4: Simplify right side
    404,874.10x = 165,288,049,635.26
  5. Step 5: Solve for x
    x = 165,288,049,635.26/404,874.10
  6. Step 6: Final answer
    x = 408,245.55

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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.