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Finding the Fourth Proportional to 967.46, 1,334.22 and 635.76

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Solution

The fourth proportional to 967.46, 1,334.22 and 635.76 is: 876.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.46 : 1,334.22 = 635.76 : x
  2. Step 2: Convert to fraction form
    967.46/1,334.22 = 635.76/x
  3. Step 3: Cross multiply
    967.46x = 1,334.22 × 635.76
  4. Step 4: Simplify right side
    967.46x = 848,243.71
  5. Step 5: Solve for x
    x = 848,243.71/967.46
  6. Step 6: Final answer
    x = 876.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.