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Finding the Fourth Proportional to 445,559.96, 668,514.99 and 196,067

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Solution

The fourth proportional to 445,559.96, 668,514.99 and 196,067 is: 294,177.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,559.96 : 668,514.99 = 196,067 : x
  2. Step 2: Convert to fraction form
    445,559.96/668,514.99 = 196,067/x
  3. Step 3: Cross multiply
    445,559.96x = 668,514.99 × 196,067
  4. Step 4: Simplify right side
    445,559.96x = 131,073,728,544.33
  5. Step 5: Solve for x
    x = 131,073,728,544.33/445,559.96
  6. Step 6: Final answer
    x = 294,177.53

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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.