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Finding the Fourth Proportional to 408,662.64, 563,945.59 and 236,587.89

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Solution

The fourth proportional to 408,662.64, 563,945.59 and 236,587.89 is: 326,486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,662.64 : 563,945.59 = 236,587.89 : x
  2. Step 2: Convert to fraction form
    408,662.64/563,945.59 = 236,587.89/x
  3. Step 3: Cross multiply
    408,662.64x = 563,945.59 × 236,587.89
  4. Step 4: Simplify right side
    408,662.64x = 133,422,697,212.91
  5. Step 5: Solve for x
    x = 133,422,697,212.91/408,662.64
  6. Step 6: Final answer
    x = 326,486.16

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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.