Home / 1,321,090.56-1,981,635.84-573,120

Finding the Fourth Proportional to 1,321,090.56, 1,981,635.84 and 573,120

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Solution

The fourth proportional to 1,321,090.56, 1,981,635.84 and 573,120 is: 859,680

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,090.56 : 1,981,635.84 = 573,120 : x
  2. Step 2: Convert to fraction form
    1,321,090.56/1,981,635.84 = 573,120/x
  3. Step 3: Cross multiply
    1,321,090.56x = 1,981,635.84 × 573,120
  4. Step 4: Simplify right side
    1,321,090.56x = 1,135,715,132,620.80
  5. Step 5: Solve for x
    x = 1,135,715,132,620.80/1,321,090.56
  6. Step 6: Final answer
    x = 859,680

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Double scale
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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.