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Finding the Fourth Proportional to 408,662.48, 563,945.39 and 236,587.70

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Solution

The fourth proportional to 408,662.48, 563,945.39 and 236,587.70 is: 326,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,662.48 : 563,945.39 = 236,587.70 : x
  2. Step 2: Convert to fraction form
    408,662.48/563,945.39 = 236,587.70/x
  3. Step 3: Cross multiply
    408,662.48x = 563,945.39 × 236,587.70
  4. Step 4: Simplify right side
    408,662.48x = 133,422,543,859.83
  5. Step 5: Solve for x
    x = 133,422,543,859.83/408,662.48
  6. Step 6: Final answer
    x = 326,485.91

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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.