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Finding the Fourth Proportional to 2,974.20, 4,461.52 and 894.04

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Solution

The fourth proportional to 2,974.20, 4,461.52 and 894.04 is: 1,341.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.20 : 4,461.52 = 894.04 : x
  2. Step 2: Convert to fraction form
    2,974.20/4,461.52 = 894.04/x
  3. Step 3: Cross multiply
    2,974.20x = 4,461.52 × 894.04
  4. Step 4: Simplify right side
    2,974.20x = 3,988,755.03
  5. Step 5: Solve for x
    x = 3,988,755.03/2,974.20
  6. Step 6: Final answer
    x = 1,341.12

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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.