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Finding the Fourth Proportional to 330,757.43, 456,479.15 and 194,834.16

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Solution

The fourth proportional to 330,757.43, 456,479.15 and 194,834.16 is: 268,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,757.43 : 456,479.15 = 194,834.16 : x
  2. Step 2: Convert to fraction form
    330,757.43/456,479.15 = 194,834.16/x
  3. Step 3: Cross multiply
    330,757.43x = 456,479.15 × 194,834.16
  4. Step 4: Simplify right side
    330,757.43x = 88,937,730,773.59
  5. Step 5: Solve for x
    x = 88,937,730,773.59/330,757.43
  6. Step 6: Final answer
    x = 268,891.11

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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.