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Finding the Fourth Proportional to 445,791.11, 668,684.30 and 108,833.54

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Solution

The fourth proportional to 445,791.11, 668,684.30 and 108,833.54 is: 163,249.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,791.11 : 668,684.30 = 108,833.54 : x
  2. Step 2: Convert to fraction form
    445,791.11/668,684.30 = 108,833.54/x
  3. Step 3: Cross multiply
    445,791.11x = 668,684.30 × 108,833.54
  4. Step 4: Simplify right side
    445,791.11x = 72,775,275,623.83
  5. Step 5: Solve for x
    x = 72,775,275,623.83/445,791.11
  6. Step 6: Final answer
    x = 163,249.73

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1.5x scale

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.