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Finding the Fourth Proportional to 1,093.37, 1,509.11 and 844.31

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Solution

The fourth proportional to 1,093.37, 1,509.11 and 844.31 is: 1,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.37 : 1,509.11 = 844.31 : x
  2. Step 2: Convert to fraction form
    1,093.37/1,509.11 = 844.31/x
  3. Step 3: Cross multiply
    1,093.37x = 1,509.11 × 844.31
  4. Step 4: Simplify right side
    1,093.37x = 1,274,151.23
  5. Step 5: Solve for x
    x = 1,274,151.23/1,093.37
  6. Step 6: Final answer
    x = 1,165.35

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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.