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Finding the Fourth Proportional to 664,721.48, 997,213.66 and 244,001

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Solution

The fourth proportional to 664,721.48, 997,213.66 and 244,001 is: 366,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,721.48 : 997,213.66 = 244,001 : x
  2. Step 2: Convert to fraction form
    664,721.48/997,213.66 = 244,001/x
  3. Step 3: Cross multiply
    664,721.48x = 997,213.66 × 244,001
  4. Step 4: Simplify right side
    664,721.48x = 243,321,130,253.66
  5. Step 5: Solve for x
    x = 243,321,130,253.66/664,721.48
  6. Step 6: Final answer
    x = 366,049.75

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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.