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Finding the Fourth Proportional to 449,354.54, 674,240.20 and 196,601.69

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Solution

The fourth proportional to 449,354.54, 674,240.20 and 196,601.69 is: 294,993.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,354.54 : 674,240.20 = 196,601.69 : x
  2. Step 2: Convert to fraction form
    449,354.54/674,240.20 = 196,601.69/x
  3. Step 3: Cross multiply
    449,354.54x = 674,240.20 × 196,601.69
  4. Step 4: Simplify right side
    449,354.54x = 132,556,763,980.03
  5. Step 5: Solve for x
    x = 132,556,763,980.03/449,354.54
  6. Step 6: Final answer
    x = 294,993.71

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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.