Home / 858,757.40-1,288,136.10-504,171.80

Finding the Fourth Proportional to 858,757.40, 1,288,136.10 and 504,171.80

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Solution

The fourth proportional to 858,757.40, 1,288,136.10 and 504,171.80 is: 756,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,757.40 : 1,288,136.10 = 504,171.80 : x
  2. Step 2: Convert to fraction form
    858,757.40/1,288,136.10 = 504,171.80/x
  3. Step 3: Cross multiply
    858,757.40x = 1,288,136.10 × 504,171.80
  4. Step 4: Simplify right side
    858,757.40x = 649,441,896,181.98
  5. Step 5: Solve for x
    x = 649,441,896,181.98/858,757.40
  6. Step 6: Final answer
    x = 756,257.70

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Double scale
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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.