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Finding the Fourth Proportional to 1,705.11, 2,353.05 and 997.44

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Solution

The fourth proportional to 1,705.11, 2,353.05 and 997.44 is: 1,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.11 : 2,353.05 = 997.44 : x
  2. Step 2: Convert to fraction form
    1,705.11/2,353.05 = 997.44/x
  3. Step 3: Cross multiply
    1,705.11x = 2,353.05 × 997.44
  4. Step 4: Simplify right side
    1,705.11x = 2,347,026.19
  5. Step 5: Solve for x
    x = 2,347,026.19/1,705.11
  6. Step 6: Final answer
    x = 1,376.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.