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Finding the Fourth Proportional to 327,321.39, 451,696.43 and 189,506.13

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Solution

The fourth proportional to 327,321.39, 451,696.43 and 189,506.13 is: 261,514.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,321.39 : 451,696.43 = 189,506.13 : x
  2. Step 2: Convert to fraction form
    327,321.39/451,696.43 = 189,506.13/x
  3. Step 3: Cross multiply
    327,321.39x = 451,696.43 × 189,506.13
  4. Step 4: Simplify right side
    327,321.39x = 85,599,241,436.59
  5. Step 5: Solve for x
    x = 85,599,241,436.59/327,321.39
  6. Step 6: Final answer
    x = 261,514.35

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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.