Home / 945,883.90-1,305,347.52-516,191.78

Finding the Fourth Proportional to 945,883.90, 1,305,347.52 and 516,191.78

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Solution

The fourth proportional to 945,883.90, 1,305,347.52 and 516,191.78 is: 712,359.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,883.90 : 1,305,347.52 = 516,191.78 : x
  2. Step 2: Convert to fraction form
    945,883.90/1,305,347.52 = 516,191.78/x
  3. Step 3: Cross multiply
    945,883.90x = 1,305,347.52 × 516,191.78
  4. Step 4: Simplify right side
    945,883.90x = 673,809,659,867.39
  5. Step 5: Solve for x
    x = 673,809,659,867.39/945,883.90
  6. Step 6: Final answer
    x = 712,359.79

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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.