Home / 681,942.20-1,022,913.30-416,221.70

Finding the Fourth Proportional to 681,942.20, 1,022,913.30 and 416,221.70

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Solution

The fourth proportional to 681,942.20, 1,022,913.30 and 416,221.70 is: 624,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,942.20 : 1,022,913.30 = 416,221.70 : x
  2. Step 2: Convert to fraction form
    681,942.20/1,022,913.30 = 416,221.70/x
  3. Step 3: Cross multiply
    681,942.20x = 1,022,913.30 × 416,221.70
  4. Step 4: Simplify right side
    681,942.20x = 425,758,712,678.61
  5. Step 5: Solve for x
    x = 425,758,712,678.61/681,942.20
  6. Step 6: Final answer
    x = 624,332.55

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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.