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Finding the Fourth Proportional to 267,638.88, 401,525.78 and 188,906.88

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Solution

The fourth proportional to 267,638.88, 401,525.78 and 188,906.88 is: 283,407.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,638.88 : 401,525.78 = 188,906.88 : x
  2. Step 2: Convert to fraction form
    267,638.88/401,525.78 = 188,906.88/x
  3. Step 3: Cross multiply
    267,638.88x = 401,525.78 × 188,906.88
  4. Step 4: Simplify right side
    267,638.88x = 75,850,982,339.37
  5. Step 5: Solve for x
    x = 75,850,982,339.37/267,638.88
  6. Step 6: Final answer
    x = 283,407.94

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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.