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Finding the Fourth Proportional to 408,660.63, 563,942.84 and 236,585.89

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Solution

The fourth proportional to 408,660.63, 563,942.84 and 236,585.89 is: 326,483.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,660.63 : 563,942.84 = 236,585.89 : x
  2. Step 2: Convert to fraction form
    408,660.63/563,942.84 = 236,585.89/x
  3. Step 3: Cross multiply
    408,660.63x = 563,942.84 × 236,585.89
  4. Step 4: Simplify right side
    408,660.63x = 133,420,914,707.88
  5. Step 5: Solve for x
    x = 133,420,914,707.88/408,660.63
  6. Step 6: Final answer
    x = 326,483.41

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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.