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Finding the Fourth Proportional to 379,067.70, 567,046.35 and 341,742.90

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Solution

The fourth proportional to 379,067.70, 567,046.35 and 341,742.90 is: 511,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,067.70 : 567,046.35 = 341,742.90 : x
  2. Step 2: Convert to fraction form
    379,067.70/567,046.35 = 341,742.90/x
  3. Step 3: Cross multiply
    379,067.70x = 567,046.35 × 341,742.90
  4. Step 4: Simplify right side
    379,067.70x = 193,784,064,083.42
  5. Step 5: Solve for x
    x = 193,784,064,083.42/379,067.70
  6. Step 6: Final answer
    x = 511,212.28

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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.