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Finding the Fourth Proportional to 792.65, 1,093.94 and 461.09

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Solution

The fourth proportional to 792.65, 1,093.94 and 461.09 is: 636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.65 : 1,093.94 = 461.09 : x
  2. Step 2: Convert to fraction form
    792.65/1,093.94 = 461.09/x
  3. Step 3: Cross multiply
    792.65x = 1,093.94 × 461.09
  4. Step 4: Simplify right side
    792.65x = 504,400.48
  5. Step 5: Solve for x
    x = 504,400.48/792.65
  6. Step 6: Final answer
    x = 636.35

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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.