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Finding the Fourth Proportional to 449,654.32, 674,948.65 and 300,933.87

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Solution

The fourth proportional to 449,654.32, 674,948.65 and 300,933.87 is: 451,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,654.32 : 674,948.65 = 300,933.87 : x
  2. Step 2: Convert to fraction form
    449,654.32/674,948.65 = 300,933.87/x
  3. Step 3: Cross multiply
    449,654.32x = 674,948.65 × 300,933.87
  4. Step 4: Simplify right side
    449,654.32x = 203,114,906,576.63
  5. Step 5: Solve for x
    x = 203,114,906,576.63/449,654.32
  6. Step 6: Final answer
    x = 451,713.45

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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.