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Finding the Fourth Proportional to 404,517.30, 606,994.65 and 179,912.40

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Solution

The fourth proportional to 404,517.30, 606,994.65 and 179,912.40 is: 269,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,517.30 : 606,994.65 = 179,912.40 : x
  2. Step 2: Convert to fraction form
    404,517.30/606,994.65 = 179,912.40/x
  3. Step 3: Cross multiply
    404,517.30x = 606,994.65 × 179,912.40
  4. Step 4: Simplify right side
    404,517.30x = 109,205,864,268.66
  5. Step 5: Solve for x
    x = 109,205,864,268.66/404,517.30
  6. Step 6: Final answer
    x = 269,965.87

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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.