Home / 681,136.20-1,019,954.70-540,001.80

Finding the Fourth Proportional to 681,136.20, 1,019,954.70 and 540,001.80

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Solution

The fourth proportional to 681,136.20, 1,019,954.70 and 540,001.80 is: 808,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,136.20 : 1,019,954.70 = 540,001.80 : x
  2. Step 2: Convert to fraction form
    681,136.20/1,019,954.70 = 540,001.80/x
  3. Step 3: Cross multiply
    681,136.20x = 1,019,954.70 × 540,001.80
  4. Step 4: Simplify right side
    681,136.20x = 550,777,373,918.46
  5. Step 5: Solve for x
    x = 550,777,373,918.46/681,136.20
  6. Step 6: Final answer
    x = 808,615.62

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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.