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Finding the Fourth Proportional to 896.24, 1,343.95 and 622.46

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Solution

The fourth proportional to 896.24, 1,343.95 and 622.46 is: 933.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.24 : 1,343.95 = 622.46 : x
  2. Step 2: Convert to fraction form
    896.24/1,343.95 = 622.46/x
  3. Step 3: Cross multiply
    896.24x = 1,343.95 × 622.46
  4. Step 4: Simplify right side
    896.24x = 836,555.12
  5. Step 5: Solve for x
    x = 836,555.12/896.24
  6. Step 6: Final answer
    x = 933.41

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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.