Home / 393,153.92-589,581.24-140,387.36

Finding the Fourth Proportional to 393,153.92, 589,581.24 and 140,387.36

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Solution

The fourth proportional to 393,153.92, 589,581.24 and 140,387.36 is: 210,527.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,153.92 : 589,581.24 = 140,387.36 : x
  2. Step 2: Convert to fraction form
    393,153.92/589,581.24 = 140,387.36/x
  3. Step 3: Cross multiply
    393,153.92x = 589,581.24 × 140,387.36
  4. Step 4: Simplify right side
    393,153.92x = 82,769,753,789.13
  5. Step 5: Solve for x
    x = 82,769,753,789.13/393,153.92
  6. Step 6: Final answer
    x = 210,527.61

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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.