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Finding the Fourth Proportional to 952.24, 1,313.88 and 553.84

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Solution

The fourth proportional to 952.24, 1,313.88 and 553.84 is: 764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.24 : 1,313.88 = 553.84 : x
  2. Step 2: Convert to fraction form
    952.24/1,313.88 = 553.84/x
  3. Step 3: Cross multiply
    952.24x = 1,313.88 × 553.84
  4. Step 4: Simplify right side
    952.24x = 727,679.30
  5. Step 5: Solve for x
    x = 727,679.30/952.24
  6. Step 6: Final answer
    x = 764.18

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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.