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Finding the Fourth Proportional to 792.09, 1,093.10 and 442.77

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Solution

The fourth proportional to 792.09, 1,093.10 and 442.77 is: 611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.09 : 1,093.10 = 442.77 : x
  2. Step 2: Convert to fraction form
    792.09/1,093.10 = 442.77/x
  3. Step 3: Cross multiply
    792.09x = 1,093.10 × 442.77
  4. Step 4: Simplify right side
    792.09x = 483,991.89
  5. Step 5: Solve for x
    x = 483,991.89/792.09
  6. Step 6: Final answer
    x = 611.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.