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Finding the Fourth Proportional to 955.62, 1,434.87 and 566.28

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Solution

The fourth proportional to 955.62, 1,434.87 and 566.28 is: 850.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.62 : 1,434.87 = 566.28 : x
  2. Step 2: Convert to fraction form
    955.62/1,434.87 = 566.28/x
  3. Step 3: Cross multiply
    955.62x = 1,434.87 × 566.28
  4. Step 4: Simplify right side
    955.62x = 812,538.18
  5. Step 5: Solve for x
    x = 812,538.18/955.62
  6. Step 6: Final answer
    x = 850.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.