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Finding the Fourth Proportional to 664,546.33, 996,771.29 and 259,662.43

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Solution

The fourth proportional to 664,546.33, 996,771.29 and 259,662.43 is: 389,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,546.33 : 996,771.29 = 259,662.43 : x
  2. Step 2: Convert to fraction form
    664,546.33/996,771.29 = 259,662.43/x
  3. Step 3: Cross multiply
    664,546.33x = 996,771.29 × 259,662.43
  4. Step 4: Simplify right side
    664,546.33x = 258,824,053,472.86
  5. Step 5: Solve for x
    x = 258,824,053,472.86/664,546.33
  6. Step 6: Final answer
    x = 389,474.81

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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.