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Finding the Fourth Proportional to 967.16, 1,453.50 and 480.56

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Solution

The fourth proportional to 967.16, 1,453.50 and 480.56 is: 722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.16 : 1,453.50 = 480.56 : x
  2. Step 2: Convert to fraction form
    967.16/1,453.50 = 480.56/x
  3. Step 3: Cross multiply
    967.16x = 1,453.50 × 480.56
  4. Step 4: Simplify right side
    967.16x = 698,493.96
  5. Step 5: Solve for x
    x = 698,493.96/967.16
  6. Step 6: Final answer
    x = 722.21

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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.