Home / 681,138.20-1,019,957.70-540,003.80

Finding the Fourth Proportional to 681,138.20, 1,019,957.70 and 540,003.80

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Solution

The fourth proportional to 681,138.20, 1,019,957.70 and 540,003.80 is: 808,618.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,138.20 : 1,019,957.70 = 540,003.80 : x
  2. Step 2: Convert to fraction form
    681,138.20/1,019,957.70 = 540,003.80/x
  3. Step 3: Cross multiply
    681,138.20x = 1,019,957.70 × 540,003.80
  4. Step 4: Simplify right side
    681,138.20x = 550,781,033,839.26
  5. Step 5: Solve for x
    x = 550,781,033,839.26/681,138.20
  6. Step 6: Final answer
    x = 808,618.62

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1.5x scale

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.