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Finding the Fourth Proportional to 491,249.80, 736,874.70 and 254,513.80

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Solution

The fourth proportional to 491,249.80, 736,874.70 and 254,513.80 is: 381,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,249.80 : 736,874.70 = 254,513.80 : x
  2. Step 2: Convert to fraction form
    491,249.80/736,874.70 = 254,513.80/x
  3. Step 3: Cross multiply
    491,249.80x = 736,874.70 × 254,513.80
  4. Step 4: Simplify right side
    491,249.80x = 187,544,780,020.86
  5. Step 5: Solve for x
    x = 187,544,780,020.86/491,249.80
  6. Step 6: Final answer
    x = 381,770.70

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Similar ratio
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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.