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Finding the Fourth Proportional to 996.37, 1,484.66 and 887.33

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Solution

The fourth proportional to 996.37, 1,484.66 and 887.33 is: 1,322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.37 : 1,484.66 = 887.33 : x
  2. Step 2: Convert to fraction form
    996.37/1,484.66 = 887.33/x
  3. Step 3: Cross multiply
    996.37x = 1,484.66 × 887.33
  4. Step 4: Simplify right side
    996.37x = 1,317,378.15
  5. Step 5: Solve for x
    x = 1,317,378.15/996.37
  6. Step 6: Final answer
    x = 1,322.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.