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Finding the Fourth Proportional to 447,067.86, 616,928.72 and 256,093.56

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Solution

The fourth proportional to 447,067.86, 616,928.72 and 256,093.56 is: 353,394.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,067.86 : 616,928.72 = 256,093.56 : x
  2. Step 2: Convert to fraction form
    447,067.86/616,928.72 = 256,093.56/x
  3. Step 3: Cross multiply
    447,067.86x = 616,928.72 × 256,093.56
  4. Step 4: Simplify right side
    447,067.86x = 157,991,470,890.58
  5. Step 5: Solve for x
    x = 157,991,470,890.58/447,067.86
  6. Step 6: Final answer
    x = 353,394.83

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1.5x scale

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.