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Finding the Fourth Proportional to 896.02, 1,236.27 and 546.70

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Solution

The fourth proportional to 896.02, 1,236.27 and 546.70 is: 754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.02 : 1,236.27 = 546.70 : x
  2. Step 2: Convert to fraction form
    896.02/1,236.27 = 546.70/x
  3. Step 3: Cross multiply
    896.02x = 1,236.27 × 546.70
  4. Step 4: Simplify right side
    896.02x = 675,868.81
  5. Step 5: Solve for x
    x = 675,868.81/896.02
  6. Step 6: Final answer
    x = 754.30

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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.