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Finding the Fourth Proportional to 318,650.54, 438,900.06 and 244,921.97

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Solution

The fourth proportional to 318,650.54, 438,900.06 and 244,921.97 is: 337,348.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,650.54 : 438,900.06 = 244,921.97 : x
  2. Step 2: Convert to fraction form
    318,650.54/438,900.06 = 244,921.97/x
  3. Step 3: Cross multiply
    318,650.54x = 438,900.06 × 244,921.97
  4. Step 4: Simplify right side
    318,650.54x = 107,496,268,425.57
  5. Step 5: Solve for x
    x = 107,496,268,425.57/318,650.54
  6. Step 6: Final answer
    x = 337,348.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.