Home / 945,881.76-1,305,344.61-516,189.63

Finding the Fourth Proportional to 945,881.76, 1,305,344.61 and 516,189.63

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Solution

The fourth proportional to 945,881.76, 1,305,344.61 and 516,189.63 is: 712,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,881.76 : 1,305,344.61 = 516,189.63 : x
  2. Step 2: Convert to fraction form
    945,881.76/1,305,344.61 = 516,189.63/x
  3. Step 3: Cross multiply
    945,881.76x = 1,305,344.61 × 516,189.63
  4. Step 4: Simplify right side
    945,881.76x = 673,805,351,258.39
  5. Step 5: Solve for x
    x = 673,805,351,258.39/945,881.76
  6. Step 6: Final answer
    x = 712,356.85

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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.