Home / 814,112.60-1,220,950.20-281,796.80

Finding the Fourth Proportional to 814,112.60, 1,220,950.20 and 281,796.80

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Solution

The fourth proportional to 814,112.60, 1,220,950.20 and 281,796.80 is: 422,619.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,112.60 : 1,220,950.20 = 281,796.80 : x
  2. Step 2: Convert to fraction form
    814,112.60/1,220,950.20 = 281,796.80/x
  3. Step 3: Cross multiply
    814,112.60x = 1,220,950.20 × 281,796.80
  4. Step 4: Simplify right side
    814,112.60x = 344,059,859,319.36
  5. Step 5: Solve for x
    x = 344,059,859,319.36/814,112.60
  6. Step 6: Final answer
    x = 422,619.50

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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.