Home / 1,391,200.80-2,086,282.80-969,223.20

Finding the Fourth Proportional to 1,391,200.80, 2,086,282.80 and 969,223.20

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Solution

The fourth proportional to 1,391,200.80, 2,086,282.80 and 969,223.20 is: 1,453,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,200.80 : 2,086,282.80 = 969,223.20 : x
  2. Step 2: Convert to fraction form
    1,391,200.80/2,086,282.80 = 969,223.20/x
  3. Step 3: Cross multiply
    1,391,200.80x = 2,086,282.80 × 969,223.20
  4. Step 4: Simplify right side
    1,391,200.80x = 2,022,073,691,520.96
  5. Step 5: Solve for x
    x = 2,022,073,691,520.96/1,391,200.80
  6. Step 6: Final answer
    x = 1,453,473.64

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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.