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Finding the Fourth Proportional to 527,201.38, 790,638.43 and 190,198.12

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Solution

The fourth proportional to 527,201.38, 790,638.43 and 190,198.12 is: 285,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,201.38 : 790,638.43 = 190,198.12 : x
  2. Step 2: Convert to fraction form
    527,201.38/790,638.43 = 190,198.12/x
  3. Step 3: Cross multiply
    527,201.38x = 790,638.43 × 190,198.12
  4. Step 4: Simplify right side
    527,201.38x = 150,377,942,372.73
  5. Step 5: Solve for x
    x = 150,377,942,372.73/527,201.38
  6. Step 6: Final answer
    x = 285,238.14

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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.