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Finding the Fourth Proportional to 408,481.14, 563,664.48 and 236,364.78

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Solution

The fourth proportional to 408,481.14, 563,664.48 and 236,364.78 is: 326,160.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,481.14 : 563,664.48 = 236,364.78 : x
  2. Step 2: Convert to fraction form
    408,481.14/563,664.48 = 236,364.78/x
  3. Step 3: Cross multiply
    408,481.14x = 563,664.48 × 236,364.78
  4. Step 4: Simplify right side
    408,481.14x = 133,230,430,809.01
  5. Step 5: Solve for x
    x = 133,230,430,809.01/408,481.14
  6. Step 6: Final answer
    x = 326,160.54

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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.