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Finding the Fourth Proportional to 393,694.80, 589,654.20 and 182,889.12

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Solution

The fourth proportional to 393,694.80, 589,654.20 and 182,889.12 is: 273,921.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,694.80 : 589,654.20 = 182,889.12 : x
  2. Step 2: Convert to fraction form
    393,694.80/589,654.20 = 182,889.12/x
  3. Step 3: Cross multiply
    393,694.80x = 589,654.20 × 182,889.12
  4. Step 4: Simplify right side
    393,694.80x = 107,841,337,742.30
  5. Step 5: Solve for x
    x = 107,841,337,742.30/393,694.80
  6. Step 6: Final answer
    x = 273,921.16

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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.