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Finding the Fourth Proportional to 952.56, 1,315.40 and 834.32

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Solution

The fourth proportional to 952.56, 1,315.40 and 834.32 is: 1,152.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.56 : 1,315.40 = 834.32 : x
  2. Step 2: Convert to fraction form
    952.56/1,315.40 = 834.32/x
  3. Step 3: Cross multiply
    952.56x = 1,315.40 × 834.32
  4. Step 4: Simplify right side
    952.56x = 1,097,464.53
  5. Step 5: Solve for x
    x = 1,097,464.53/952.56
  6. Step 6: Final answer
    x = 1,152.12

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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.