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Finding the Fourth Proportional to 317,863.44, 476,351.82 and 238,885.20

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Solution

The fourth proportional to 317,863.44, 476,351.82 and 238,885.20 is: 357,994.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,863.44 : 476,351.82 = 238,885.20 : x
  2. Step 2: Convert to fraction form
    317,863.44/476,351.82 = 238,885.20/x
  3. Step 3: Cross multiply
    317,863.44x = 476,351.82 × 238,885.20
  4. Step 4: Simplify right side
    317,863.44x = 113,793,399,791.06
  5. Step 5: Solve for x
    x = 113,793,399,791.06/317,863.44
  6. Step 6: Final answer
    x = 357,994.61

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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.