Home / 823,217.92-1,234,819.94-643,454.55

Finding the Fourth Proportional to 823,217.92, 1,234,819.94 and 643,454.55

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Solution

The fourth proportional to 823,217.92, 1,234,819.94 and 643,454.55 is: 965,176.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,217.92 : 1,234,819.94 = 643,454.55 : x
  2. Step 2: Convert to fraction form
    823,217.92/1,234,819.94 = 643,454.55/x
  3. Step 3: Cross multiply
    823,217.92x = 1,234,819.94 × 643,454.55
  4. Step 4: Simplify right side
    823,217.92x = 794,550,508,823.73
  5. Step 5: Solve for x
    x = 794,550,508,823.73/823,217.92
  6. Step 6: Final answer
    x = 965,176.41

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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.