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Finding the Fourth Proportional to 327,321.89, 451,697.12 and 189,506.63

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Solution

The fourth proportional to 327,321.89, 451,697.12 and 189,506.63 is: 261,515.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,321.89 : 451,697.12 = 189,506.63 : x
  2. Step 2: Convert to fraction form
    327,321.89/451,697.12 = 189,506.63/x
  3. Step 3: Cross multiply
    327,321.89x = 451,697.12 × 189,506.63
  4. Step 4: Simplify right side
    327,321.89x = 85,599,598,044.37
  5. Step 5: Solve for x
    x = 85,599,598,044.37/327,321.89
  6. Step 6: Final answer
    x = 261,515.04

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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.