Home / 393,154.42-589,581.99-140,387.86

Finding the Fourth Proportional to 393,154.42, 589,581.99 and 140,387.86

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Solution

The fourth proportional to 393,154.42, 589,581.99 and 140,387.86 is: 210,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,154.42 : 589,581.99 = 140,387.86 : x
  2. Step 2: Convert to fraction form
    393,154.42/589,581.99 = 140,387.86/x
  3. Step 3: Cross multiply
    393,154.42x = 589,581.99 × 140,387.86
  4. Step 4: Simplify right side
    393,154.42x = 82,770,153,870.64
  5. Step 5: Solve for x
    x = 82,770,153,870.64/393,154.42
  6. Step 6: Final answer
    x = 210,528.36

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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.