Home / 945,815.91-1,305,257.46-516,119.61

Finding the Fourth Proportional to 945,815.91, 1,305,257.46 and 516,119.61

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Solution

The fourth proportional to 945,815.91, 1,305,257.46 and 516,119.61 is: 712,262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,815.91 : 1,305,257.46 = 516,119.61 : x
  2. Step 2: Convert to fraction form
    945,815.91/1,305,257.46 = 516,119.61/x
  3. Step 3: Cross multiply
    945,815.91x = 1,305,257.46 × 516,119.61
  4. Step 4: Simplify right side
    945,815.91x = 673,668,971,204.79
  5. Step 5: Solve for x
    x = 673,668,971,204.79/945,815.91
  6. Step 6: Final answer
    x = 712,262.25

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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.