Home / 766,286.13-1,057,313.07-443,976.60

Finding the Fourth Proportional to 766,286.13, 1,057,313.07 and 443,976.60

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Solution

The fourth proportional to 766,286.13, 1,057,313.07 and 443,976.60 is: 612,593.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,286.13 : 1,057,313.07 = 443,976.60 : x
  2. Step 2: Convert to fraction form
    766,286.13/1,057,313.07 = 443,976.60/x
  3. Step 3: Cross multiply
    766,286.13x = 1,057,313.07 × 443,976.60
  4. Step 4: Simplify right side
    766,286.13x = 469,422,261,954.16
  5. Step 5: Solve for x
    x = 469,422,261,954.16/766,286.13
  6. Step 6: Final answer
    x = 612,593.97

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.