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Finding the Fourth Proportional to 251,190.20, 377,399.70 and 188,982.20

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Solution

The fourth proportional to 251,190.20, 377,399.70 and 188,982.20 is: 283,935.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,190.20 : 377,399.70 = 188,982.20 : x
  2. Step 2: Convert to fraction form
    251,190.20/377,399.70 = 188,982.20/x
  3. Step 3: Cross multiply
    251,190.20x = 377,399.70 × 188,982.20
  4. Step 4: Simplify right side
    251,190.20x = 71,321,825,585.34
  5. Step 5: Solve for x
    x = 71,321,825,585.34/251,190.20
  6. Step 6: Final answer
    x = 283,935.54

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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.