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Finding the Fourth Proportional to 335,791.40, 503,249.70 and 135,948.20

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Solution

The fourth proportional to 335,791.40, 503,249.70 and 135,948.20 is: 203,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,791.40 : 503,249.70 = 135,948.20 : x
  2. Step 2: Convert to fraction form
    335,791.40/503,249.70 = 135,948.20/x
  3. Step 3: Cross multiply
    335,791.40x = 503,249.70 × 135,948.20
  4. Step 4: Simplify right side
    335,791.40x = 68,415,890,865.54
  5. Step 5: Solve for x
    x = 68,415,890,865.54/335,791.40
  6. Step 6: Final answer
    x = 203,745.21

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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.