Home / 986,803.20-1,361,793.28-557,100.80

Finding the Fourth Proportional to 986,803.20, 1,361,793.28 and 557,100.80

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Solution

The fourth proportional to 986,803.20, 1,361,793.28 and 557,100.80 is: 768,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,803.20 : 1,361,793.28 = 557,100.80 : x
  2. Step 2: Convert to fraction form
    986,803.20/1,361,793.28 = 557,100.80/x
  3. Step 3: Cross multiply
    986,803.20x = 1,361,793.28 × 557,100.80
  4. Step 4: Simplify right side
    986,803.20x = 758,656,125,722.62
  5. Step 5: Solve for x
    x = 758,656,125,722.62/986,803.20
  6. Step 6: Final answer
    x = 768,801.85

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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.