Home / 393,414.28-589,976.82-140,626.54

Finding the Fourth Proportional to 393,414.28, 589,976.82 and 140,626.54

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Solution

The fourth proportional to 393,414.28, 589,976.82 and 140,626.54 is: 210,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,414.28 : 589,976.82 = 140,626.54 : x
  2. Step 2: Convert to fraction form
    393,414.28/589,976.82 = 140,626.54/x
  3. Step 3: Cross multiply
    393,414.28x = 589,976.82 × 140,626.54
  4. Step 4: Simplify right side
    393,414.28x = 82,966,398,876.80
  5. Step 5: Solve for x
    x = 82,966,398,876.80/393,414.28
  6. Step 6: Final answer
    x = 210,888.12

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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.