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Finding the Fourth Proportional to 3,314.30, 4,971.44 and 849.04

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Solution

The fourth proportional to 3,314.30, 4,971.44 and 849.04 is: 1,273.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.30 : 4,971.44 = 849.04 : x
  2. Step 2: Convert to fraction form
    3,314.30/4,971.44 = 849.04/x
  3. Step 3: Cross multiply
    3,314.30x = 4,971.44 × 849.04
  4. Step 4: Simplify right side
    3,314.30x = 4,220,941.11
  5. Step 5: Solve for x
    x = 4,220,941.11/3,314.30
  6. Step 6: Final answer
    x = 1,273.56

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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.