Home / 814,100.68-1,221,151.03-557,680.39

Finding the Fourth Proportional to 814,100.68, 1,221,151.03 and 557,680.39

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Solution

The fourth proportional to 814,100.68, 1,221,151.03 and 557,680.39 is: 836,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,100.68 : 1,221,151.03 = 557,680.39 : x
  2. Step 2: Convert to fraction form
    814,100.68/1,221,151.03 = 557,680.39/x
  3. Step 3: Cross multiply
    814,100.68x = 1,221,151.03 × 557,680.39
  4. Step 4: Simplify right side
    814,100.68x = 681,011,986,649.67
  5. Step 5: Solve for x
    x = 681,011,986,649.67/814,100.68
  6. Step 6: Final answer
    x = 836,520.60

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Double scale
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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.