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Finding the Fourth Proportional to 792.17, 1,093.26 and 477.59

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Solution

The fourth proportional to 792.17, 1,093.26 and 477.59 is: 659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.17 : 1,093.26 = 477.59 : x
  2. Step 2: Convert to fraction form
    792.17/1,093.26 = 477.59/x
  3. Step 3: Cross multiply
    792.17x = 1,093.26 × 477.59
  4. Step 4: Simplify right side
    792.17x = 522,124.58
  5. Step 5: Solve for x
    x = 522,124.58/792.17
  6. Step 6: Final answer
    x = 659.11

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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.