Home / 641,371.92-961,763.40-185,859.60

Finding the Fourth Proportional to 641,371.92, 961,763.40 and 185,859.60

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Solution

The fourth proportional to 641,371.92, 961,763.40 and 185,859.60 is: 278,704.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,371.92 : 961,763.40 = 185,859.60 : x
  2. Step 2: Convert to fraction form
    641,371.92/961,763.40 = 185,859.60/x
  3. Step 3: Cross multiply
    641,371.92x = 961,763.40 × 185,859.60
  4. Step 4: Simplify right side
    641,371.92x = 178,752,960,818.64
  5. Step 5: Solve for x
    x = 178,752,960,818.64/641,371.92
  6. Step 6: Final answer
    x = 278,704.06

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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.