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Finding the Fourth Proportional to 449,846.40, 674,571.36 and 239,434.56

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Solution

The fourth proportional to 449,846.40, 674,571.36 and 239,434.56 is: 359,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,846.40 : 674,571.36 = 239,434.56 : x
  2. Step 2: Convert to fraction form
    449,846.40/674,571.36 = 239,434.56/x
  3. Step 3: Cross multiply
    449,846.40x = 674,571.36 × 239,434.56
  4. Step 4: Simplify right side
    449,846.40x = 161,515,696,770.20
  5. Step 5: Solve for x
    x = 161,515,696,770.20/449,846.40
  6. Step 6: Final answer
    x = 359,046.33

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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.