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Finding the Fourth Proportional to 408,467.51, 563,651.61 and 236,398.04

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Solution

The fourth proportional to 408,467.51, 563,651.61 and 236,398.04 is: 326,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,467.51 : 563,651.61 = 236,398.04 : x
  2. Step 2: Convert to fraction form
    408,467.51/563,651.61 = 236,398.04/x
  3. Step 3: Cross multiply
    408,467.51x = 563,651.61 × 236,398.04
  4. Step 4: Simplify right side
    408,467.51x = 133,246,138,756.07
  5. Step 5: Solve for x
    x = 133,246,138,756.07/408,467.51
  6. Step 6: Final answer
    x = 326,209.88

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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.