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Finding the Fourth Proportional to 967.67, 1,451.10 and 351.17

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Solution

The fourth proportional to 967.67, 1,451.10 and 351.17 is: 526.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.67 : 1,451.10 = 351.17 : x
  2. Step 2: Convert to fraction form
    967.67/1,451.10 = 351.17/x
  3. Step 3: Cross multiply
    967.67x = 1,451.10 × 351.17
  4. Step 4: Simplify right side
    967.67x = 509,582.79
  5. Step 5: Solve for x
    x = 509,582.79/967.67
  6. Step 6: Final answer
    x = 526.61

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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.