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Finding the Fourth Proportional to 896.46, 1,333.84 and 874.14

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Solution

The fourth proportional to 896.46, 1,333.84 and 874.14 is: 1,300.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.46 : 1,333.84 = 874.14 : x
  2. Step 2: Convert to fraction form
    896.46/1,333.84 = 874.14/x
  3. Step 3: Cross multiply
    896.46x = 1,333.84 × 874.14
  4. Step 4: Simplify right side
    896.46x = 1,165,962.90
  5. Step 5: Solve for x
    x = 1,165,962.90/896.46
  6. Step 6: Final answer
    x = 1,300.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.