Home / 681,163.20-1,019,995.20-540,028.80

Finding the Fourth Proportional to 681,163.20, 1,019,995.20 and 540,028.80

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Solution

The fourth proportional to 681,163.20, 1,019,995.20 and 540,028.80 is: 808,656.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,163.20 : 1,019,995.20 = 540,028.80 : x
  2. Step 2: Convert to fraction form
    681,163.20/1,019,995.20 = 540,028.80/x
  3. Step 3: Cross multiply
    681,163.20x = 1,019,995.20 × 540,028.80
  4. Step 4: Simplify right side
    681,163.20x = 550,826,783,861.76
  5. Step 5: Solve for x
    x = 550,826,783,861.76/681,163.20
  6. Step 6: Final answer
    x = 808,656.11

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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.