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Finding the Fourth Proportional to 494,618.40, 741,781.80 and 194,999.40

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Solution

The fourth proportional to 494,618.40, 741,781.80 and 194,999.40 is: 292,441.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,618.40 : 741,781.80 = 194,999.40 : x
  2. Step 2: Convert to fraction form
    494,618.40/741,781.80 = 194,999.40/x
  3. Step 3: Cross multiply
    494,618.40x = 741,781.80 × 194,999.40
  4. Step 4: Simplify right side
    494,618.40x = 144,647,005,930.92
  5. Step 5: Solve for x
    x = 144,647,005,930.92/494,618.40
  6. Step 6: Final answer
    x = 292,441.62

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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.