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Finding the Fourth Proportional to 492,067.83, 679,103.78 and 301,207.35

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Solution

The fourth proportional to 492,067.83, 679,103.78 and 301,207.35 is: 415,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,067.83 : 679,103.78 = 301,207.35 : x
  2. Step 2: Convert to fraction form
    492,067.83/679,103.78 = 301,207.35/x
  3. Step 3: Cross multiply
    492,067.83x = 679,103.78 × 301,207.35
  4. Step 4: Simplify right side
    492,067.83x = 204,551,048,442.75
  5. Step 5: Solve for x
    x = 204,551,048,442.75/492,067.83
  6. Step 6: Final answer
    x = 415,696.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.