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Finding the Fourth Proportional to 331,163.40, 496,404.90 and 162,424.20

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Solution

The fourth proportional to 331,163.40, 496,404.90 and 162,424.20 is: 243,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,163.40 : 496,404.90 = 162,424.20 : x
  2. Step 2: Convert to fraction form
    331,163.40/496,404.90 = 162,424.20/x
  3. Step 3: Cross multiply
    331,163.40x = 496,404.90 × 162,424.20
  4. Step 4: Simplify right side
    331,163.40x = 80,628,168,758.58
  5. Step 5: Solve for x
    x = 80,628,168,758.58/331,163.40
  6. Step 6: Final answer
    x = 243,469.44

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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.