Home / 681,865.96-1,022,850.78-208,586.92

Finding the Fourth Proportional to 681,865.96, 1,022,850.78 and 208,586.92

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Solution

The fourth proportional to 681,865.96, 1,022,850.78 and 208,586.92 is: 312,896.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,865.96 : 1,022,850.78 = 208,586.92 : x
  2. Step 2: Convert to fraction form
    681,865.96/1,022,850.78 = 208,586.92/x
  3. Step 3: Cross multiply
    681,865.96x = 1,022,850.78 × 208,586.92
  4. Step 4: Simplify right side
    681,865.96x = 213,353,293,819.80
  5. Step 5: Solve for x
    x = 213,353,293,819.80/681,865.96
  6. Step 6: Final answer
    x = 312,896.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.