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Finding the Fourth Proportional to 960.36, 1,325.64 and 567.48

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Solution

The fourth proportional to 960.36, 1,325.64 and 567.48 is: 783.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.36 : 1,325.64 = 567.48 : x
  2. Step 2: Convert to fraction form
    960.36/1,325.64 = 567.48/x
  3. Step 3: Cross multiply
    960.36x = 1,325.64 × 567.48
  4. Step 4: Simplify right side
    960.36x = 752,274.19
  5. Step 5: Solve for x
    x = 752,274.19/960.36
  6. Step 6: Final answer
    x = 783.33

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1.5x scale

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.