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Finding the Fourth Proportional to 967.95, 1,451.93 and 351.65

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Solution

The fourth proportional to 967.95, 1,451.93 and 351.65 is: 527.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.95 : 1,451.93 = 351.65 : x
  2. Step 2: Convert to fraction form
    967.95/1,451.93 = 351.65/x
  3. Step 3: Cross multiply
    967.95x = 1,451.93 × 351.65
  4. Step 4: Simplify right side
    967.95x = 510,562.17
  5. Step 5: Solve for x
    x = 510,562.17/967.95
  6. Step 6: Final answer
    x = 527.47

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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.