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Finding the Fourth Proportional to 341,362.78, 511,885.68 and 199,249.09

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Solution

The fourth proportional to 341,362.78, 511,885.68 and 199,249.09 is: 298,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,362.78 : 511,885.68 = 199,249.09 : x
  2. Step 2: Convert to fraction form
    341,362.78/511,885.68 = 199,249.09/x
  3. Step 3: Cross multiply
    341,362.78x = 511,885.68 × 199,249.09
  4. Step 4: Simplify right side
    341,362.78x = 101,992,755,924.03
  5. Step 5: Solve for x
    x = 101,992,755,924.03/341,362.78
  6. Step 6: Final answer
    x = 298,781.13

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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.