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Finding the Fourth Proportional to 596.20, 822.84 and 561.04

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Solution

The fourth proportional to 596.20, 822.84 and 561.04 is: 774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    596.20 : 822.84 = 561.04 : x
  2. Step 2: Convert to fraction form
    596.20/822.84 = 561.04/x
  3. Step 3: Cross multiply
    596.20x = 822.84 × 561.04
  4. Step 4: Simplify right side
    596.20x = 461,646.15
  5. Step 5: Solve for x
    x = 461,646.15/596.20
  6. Step 6: Final answer
    x = 774.31

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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.