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Finding the Fourth Proportional to 331,508.16, 457,481.79 and 188,268.17

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Solution

The fourth proportional to 331,508.16, 457,481.79 and 188,268.17 is: 259,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,508.16 : 457,481.79 = 188,268.17 : x
  2. Step 2: Convert to fraction form
    331,508.16/457,481.79 = 188,268.17/x
  3. Step 3: Cross multiply
    331,508.16x = 457,481.79 × 188,268.17
  4. Step 4: Simplify right side
    331,508.16x = 86,129,257,124.22
  5. Step 5: Solve for x
    x = 86,129,257,124.22/331,508.16
  6. Step 6: Final answer
    x = 259,810.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.