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Finding the Fourth Proportional to 967.73, 1,451.73 and 318.35

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Solution

The fourth proportional to 967.73, 1,451.73 and 318.35 is: 477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.73 : 1,451.73 = 318.35 : x
  2. Step 2: Convert to fraction form
    967.73/1,451.73 = 318.35/x
  3. Step 3: Cross multiply
    967.73x = 1,451.73 × 318.35
  4. Step 4: Simplify right side
    967.73x = 462,158.25
  5. Step 5: Solve for x
    x = 462,158.25/967.73
  6. Step 6: Final answer
    x = 477.57

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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.