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Finding the Fourth Proportional to 1,840.89, 2,761.85 and 746.03

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Solution

The fourth proportional to 1,840.89, 2,761.85 and 746.03 is: 1,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.89 : 2,761.85 = 746.03 : x
  2. Step 2: Convert to fraction form
    1,840.89/2,761.85 = 746.03/x
  3. Step 3: Cross multiply
    1,840.89x = 2,761.85 × 746.03
  4. Step 4: Simplify right side
    1,840.89x = 2,060,411.99
  5. Step 5: Solve for x
    x = 2,060,411.99/1,840.89
  6. Step 6: Final answer
    x = 1,119.25

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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.