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Finding the Fourth Proportional to 449,593.44, 674,722.66 and 212,936.56

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Solution

The fourth proportional to 449,593.44, 674,722.66 and 212,936.56 is: 319,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,593.44 : 674,722.66 = 212,936.56 : x
  2. Step 2: Convert to fraction form
    449,593.44/674,722.66 = 212,936.56/x
  3. Step 3: Cross multiply
    449,593.44x = 674,722.66 × 212,936.56
  4. Step 4: Simplify right side
    449,593.44x = 143,673,122,174.45
  5. Step 5: Solve for x
    x = 143,673,122,174.45/449,593.44
  6. Step 6: Final answer
    x = 319,562.32

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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.