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Finding the Fourth Proportional to 414,179.58, 621,891.45 and 236,886.78

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Solution

The fourth proportional to 414,179.58, 621,891.45 and 236,886.78 is: 355,685.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,179.58 : 621,891.45 = 236,886.78 : x
  2. Step 2: Convert to fraction form
    414,179.58/621,891.45 = 236,886.78/x
  3. Step 3: Cross multiply
    414,179.58x = 621,891.45 × 236,886.78
  4. Step 4: Simplify right side
    414,179.58x = 147,317,863,100.03
  5. Step 5: Solve for x
    x = 147,317,863,100.03/414,179.58
  6. Step 6: Final answer
    x = 355,685.96

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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.