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Finding the Fourth Proportional to 408,658.82, 563,940.36 and 236,584.06

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Solution

The fourth proportional to 408,658.82, 563,940.36 and 236,584.06 is: 326,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,658.82 : 563,940.36 = 236,584.06 : x
  2. Step 2: Convert to fraction form
    408,658.82/563,940.36 = 236,584.06/x
  3. Step 3: Cross multiply
    408,658.82x = 563,940.36 × 236,584.06
  4. Step 4: Simplify right side
    408,658.82x = 133,419,298,556.81
  5. Step 5: Solve for x
    x = 133,419,298,556.81/408,658.82
  6. Step 6: Final answer
    x = 326,480.90

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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.