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Finding the Fourth Proportional to 449,630.40, 674,348.40 and 196,910.40

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Solution

The fourth proportional to 449,630.40, 674,348.40 and 196,910.40 is: 295,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,630.40 : 674,348.40 = 196,910.40 : x
  2. Step 2: Convert to fraction form
    449,630.40/674,348.40 = 196,910.40/x
  3. Step 3: Cross multiply
    449,630.40x = 674,348.40 × 196,910.40
  4. Step 4: Simplify right side
    449,630.40x = 132,786,213,183.36
  5. Step 5: Solve for x
    x = 132,786,213,183.36/449,630.40
  6. Step 6: Final answer
    x = 295,323.03

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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.