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Finding the Fourth Proportional to 986,859.46, 1,361,790.04 and 557,182

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Solution

The fourth proportional to 986,859.46, 1,361,790.04 and 557,182 is: 768,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,859.46 : 1,361,790.04 = 557,182 : x
  2. Step 2: Convert to fraction form
    986,859.46/1,361,790.04 = 557,182/x
  3. Step 3: Cross multiply
    986,859.46x = 1,361,790.04 × 557,182
  4. Step 4: Simplify right side
    986,859.46x = 758,764,898,067.28
  5. Step 5: Solve for x
    x = 758,764,898,067.28/986,859.46
  6. Step 6: Final answer
    x = 768,868.24

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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.