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Finding the Fourth Proportional to 960.36, 1,324.96 and 567.51

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Solution

The fourth proportional to 960.36, 1,324.96 and 567.51 is: 782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.36 : 1,324.96 = 567.51 : x
  2. Step 2: Convert to fraction form
    960.36/1,324.96 = 567.51/x
  3. Step 3: Cross multiply
    960.36x = 1,324.96 × 567.51
  4. Step 4: Simplify right side
    960.36x = 751,921.66
  5. Step 5: Solve for x
    x = 751,921.66/960.36
  6. Step 6: Final answer
    x = 782.96

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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.