Home / 831,608.20-1,247,566.20-263,132.43

Finding the Fourth Proportional to 831,608.20, 1,247,566.20 and 263,132.43

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Solution

The fourth proportional to 831,608.20, 1,247,566.20 and 263,132.43 is: 394,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,608.20 : 1,247,566.20 = 263,132.43 : x
  2. Step 2: Convert to fraction form
    831,608.20/1,247,566.20 = 263,132.43/x
  3. Step 3: Cross multiply
    831,608.20x = 1,247,566.20 × 263,132.43
  4. Step 4: Simplify right side
    831,608.20x = 328,275,125,791.87
  5. Step 5: Solve for x
    x = 328,275,125,791.87/831,608.20
  6. Step 6: Final answer
    x = 394,747.34

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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.