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Finding the Fourth Proportional to 952.15, 1,314.26 and 553.99

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Solution

The fourth proportional to 952.15, 1,314.26 and 553.99 is: 764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.15 : 1,314.26 = 553.99 : x
  2. Step 2: Convert to fraction form
    952.15/1,314.26 = 553.99/x
  3. Step 3: Cross multiply
    952.15x = 1,314.26 × 553.99
  4. Step 4: Simplify right side
    952.15x = 728,086.90
  5. Step 5: Solve for x
    x = 728,086.90/952.15
  6. Step 6: Final answer
    x = 764.68

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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.