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Finding the Fourth Proportional to 449,654.45, 674,948.84 and 300,934

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Solution

The fourth proportional to 449,654.45, 674,948.84 and 300,934 is: 451,713.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,654.45 : 674,948.84 = 300,934 : x
  2. Step 2: Convert to fraction form
    449,654.45/674,948.84 = 300,934/x
  3. Step 3: Cross multiply
    449,654.45x = 674,948.84 × 300,934
  4. Step 4: Simplify right side
    449,654.45x = 203,115,054,216.56
  5. Step 5: Solve for x
    x = 203,115,054,216.56/449,654.45
  6. Step 6: Final answer
    x = 451,713.65

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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.