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Finding the Fourth Proportional to 449,594.46, 674,724.18 and 212,937.54

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Solution

The fourth proportional to 449,594.46, 674,724.18 and 212,937.54 is: 319,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,594.46 : 674,724.18 = 212,937.54 : x
  2. Step 2: Convert to fraction form
    449,594.46/674,724.18 = 212,937.54/x
  3. Step 3: Cross multiply
    449,594.46x = 674,724.18 × 212,937.54
  4. Step 4: Simplify right side
    449,594.46x = 143,674,107,067.72
  5. Step 5: Solve for x
    x = 143,674,107,067.72/449,594.46
  6. Step 6: Final answer
    x = 319,563.78

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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.