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Finding the Fourth Proportional to 317,214.75, 437,755.46 and 181,290.87

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Solution

The fourth proportional to 317,214.75, 437,755.46 and 181,290.87 is: 250,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,214.75 : 437,755.46 = 181,290.87 : x
  2. Step 2: Convert to fraction form
    317,214.75/437,755.46 = 181,290.87/x
  3. Step 3: Cross multiply
    317,214.75x = 437,755.46 × 181,290.87
  4. Step 4: Simplify right side
    317,214.75x = 79,361,069,738.27
  5. Step 5: Solve for x
    x = 79,361,069,738.27/317,214.75
  6. Step 6: Final answer
    x = 250,180.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.