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Finding the Fourth Proportional to 414,963.26, 621,447.03 and 236,930.66

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Solution

The fourth proportional to 414,963.26, 621,447.03 and 236,930.66 is: 354,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,963.26 : 621,447.03 = 236,930.66 : x
  2. Step 2: Convert to fraction form
    414,963.26/621,447.03 = 236,930.66/x
  3. Step 3: Cross multiply
    414,963.26x = 621,447.03 × 236,930.66
  4. Step 4: Simplify right side
    414,963.26x = 147,239,857,415.05
  5. Step 5: Solve for x
    x = 147,239,857,415.05/414,963.26
  6. Step 6: Final answer
    x = 354,826.25

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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.