Home / 838,278.75-1,257,536.39-269,469.21

Finding the Fourth Proportional to 838,278.75, 1,257,536.39 and 269,469.21

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Solution

The fourth proportional to 838,278.75, 1,257,536.39 and 269,469.21 is: 404,241.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,278.75 : 1,257,536.39 = 269,469.21 : x
  2. Step 2: Convert to fraction form
    838,278.75/1,257,536.39 = 269,469.21/x
  3. Step 3: Cross multiply
    838,278.75x = 1,257,536.39 × 269,469.21
  4. Step 4: Simplify right side
    838,278.75x = 338,867,336,212.21
  5. Step 5: Solve for x
    x = 338,867,336,212.21/838,278.75
  6. Step 6: Final answer
    x = 404,241.83

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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.