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Finding the Fourth Proportional to 996, 1,374.48 and 582.24

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Solution

The fourth proportional to 996, 1,374.48 and 582.24 is: 803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    996 : 1,374.48 = 582.24 : x
  2. Step 2: Convert to fraction form
    996/1,374.48 = 582.24/x
  3. Step 3: Cross multiply
    996x = 1,374.48 × 582.24
  4. Step 4: Simplify right side
    996x = 800,277.24
  5. Step 5: Solve for x
    x = 800,277.24/996
  6. Step 6: Final answer
    x = 803.49

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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.