Home / 5,250,891.90-7,876,337.85-1,261,803.90

Finding the Fourth Proportional to 5,250,891.90, 7,876,337.85 and 1,261,803.90

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Solution

The fourth proportional to 5,250,891.90, 7,876,337.85 and 1,261,803.90 is: 1,892,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250,891.90 : 7,876,337.85 = 1,261,803.90 : x
  2. Step 2: Convert to fraction form
    5,250,891.90/7,876,337.85 = 1,261,803.90/x
  3. Step 3: Cross multiply
    5,250,891.90x = 7,876,337.85 × 1,261,803.90
  4. Step 4: Simplify right side
    5,250,891.90x = 9,938,393,816,847.61
  5. Step 5: Solve for x
    x = 9,938,393,816,847.61/5,250,891.90
  6. Step 6: Final answer
    x = 1,892,705.85

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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.