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Finding the Fourth Proportional to 792.64, 1,093.80 and 460.94

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Solution

The fourth proportional to 792.64, 1,093.80 and 460.94 is: 636.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.64 : 1,093.80 = 460.94 : x
  2. Step 2: Convert to fraction form
    792.64/1,093.80 = 460.94/x
  3. Step 3: Cross multiply
    792.64x = 1,093.80 × 460.94
  4. Step 4: Simplify right side
    792.64x = 504,178.58
  5. Step 5: Solve for x
    x = 504,178.58/792.64
  6. Step 6: Final answer
    x = 636.08

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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.