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Finding the Fourth Proportional to 955.32, 1,318.04 and 562.48

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Solution

The fourth proportional to 955.32, 1,318.04 and 562.48 is: 776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.32 : 1,318.04 = 562.48 : x
  2. Step 2: Convert to fraction form
    955.32/1,318.04 = 562.48/x
  3. Step 3: Cross multiply
    955.32x = 1,318.04 × 562.48
  4. Step 4: Simplify right side
    955.32x = 741,371.14
  5. Step 5: Solve for x
    x = 741,371.14/955.32
  6. Step 6: Final answer
    x = 776.04

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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.