Home / 814,224.40-1,221,336.60-515,042.80

Finding the Fourth Proportional to 814,224.40, 1,221,336.60 and 515,042.80

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Solution

The fourth proportional to 814,224.40, 1,221,336.60 and 515,042.80 is: 772,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,224.40 : 1,221,336.60 = 515,042.80 : x
  2. Step 2: Convert to fraction form
    814,224.40/1,221,336.60 = 515,042.80/x
  3. Step 3: Cross multiply
    814,224.40x = 1,221,336.60 × 515,042.80
  4. Step 4: Simplify right side
    814,224.40x = 629,040,622,206.48
  5. Step 5: Solve for x
    x = 629,040,622,206.48/814,224.40
  6. Step 6: Final answer
    x = 772,564.20

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Similar ratio
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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.