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Finding the Fourth Proportional to 339,573.92, 508,660.96 and 198,906.08

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Solution

The fourth proportional to 339,573.92, 508,660.96 and 198,906.08 is: 297,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,573.92 : 508,660.96 = 198,906.08 : x
  2. Step 2: Convert to fraction form
    339,573.92/508,660.96 = 198,906.08/x
  3. Step 3: Cross multiply
    339,573.92x = 508,660.96 × 198,906.08
  4. Step 4: Simplify right side
    339,573.92x = 101,175,757,602.64
  5. Step 5: Solve for x
    x = 101,175,757,602.64/339,573.92
  6. Step 6: Final answer
    x = 297,949.14

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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.