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Finding the Fourth Proportional to 792.40, 1,093.54 and 595.56

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Solution

The fourth proportional to 792.40, 1,093.54 and 595.56 is: 821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.40 : 1,093.54 = 595.56 : x
  2. Step 2: Convert to fraction form
    792.40/1,093.54 = 595.56/x
  3. Step 3: Cross multiply
    792.40x = 1,093.54 × 595.56
  4. Step 4: Simplify right side
    792.40x = 651,268.68
  5. Step 5: Solve for x
    x = 651,268.68/792.40
  6. Step 6: Final answer
    x = 821.89

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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.