Home / 685,301.50-945,584.85-443,550.52

Finding the Fourth Proportional to 685,301.50, 945,584.85 and 443,550.52

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Solution

The fourth proportional to 685,301.50, 945,584.85 and 443,550.52 is: 612,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,301.50 : 945,584.85 = 443,550.52 : x
  2. Step 2: Convert to fraction form
    685,301.50/945,584.85 = 443,550.52/x
  3. Step 3: Cross multiply
    685,301.50x = 945,584.85 × 443,550.52
  4. Step 4: Simplify right side
    685,301.50x = 419,414,651,921.62
  5. Step 5: Solve for x
    x = 419,414,651,921.62/685,301.50
  6. Step 6: Final answer
    x = 612,014.79

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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.