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Finding the Fourth Proportional to 967.98, 1,451.88 and 351.66

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Solution

The fourth proportional to 967.98, 1,451.88 and 351.66 is: 527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.98 : 1,451.88 = 351.66 : x
  2. Step 2: Convert to fraction form
    967.98/1,451.88 = 351.66/x
  3. Step 3: Cross multiply
    967.98x = 1,451.88 × 351.66
  4. Step 4: Simplify right side
    967.98x = 510,568.12
  5. Step 5: Solve for x
    x = 510,568.12/967.98
  6. Step 6: Final answer
    x = 527.46

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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.