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Finding the Fourth Proportional to 967.96, 1,452.08 and 318.63

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Solution

The fourth proportional to 967.96, 1,452.08 and 318.63 is: 477.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.96 : 1,452.08 = 318.63 : x
  2. Step 2: Convert to fraction form
    967.96/1,452.08 = 318.63/x
  3. Step 3: Cross multiply
    967.96x = 1,452.08 × 318.63
  4. Step 4: Simplify right side
    967.96x = 462,676.25
  5. Step 5: Solve for x
    x = 462,676.25/967.96
  6. Step 6: Final answer
    x = 477.99

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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.