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Finding the Fourth Proportional to 952.74, 1,313.68 and 699.52

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Solution

The fourth proportional to 952.74, 1,313.68 and 699.52 is: 964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.74 : 1,313.68 = 699.52 : x
  2. Step 2: Convert to fraction form
    952.74/1,313.68 = 699.52/x
  3. Step 3: Cross multiply
    952.74x = 1,313.68 × 699.52
  4. Step 4: Simplify right side
    952.74x = 918,935.37
  5. Step 5: Solve for x
    x = 918,935.37/952.74
  6. Step 6: Final answer
    x = 964.52

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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.