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Finding the Fourth Proportional to 1,317.00, 1,817.81 and 757.53

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Solution

The fourth proportional to 1,317.00, 1,817.81 and 757.53 is: 1,045.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.00 : 1,817.81 = 757.53 : x
  2. Step 2: Convert to fraction form
    1,317.00/1,817.81 = 757.53/x
  3. Step 3: Cross multiply
    1,317.00x = 1,817.81 × 757.53
  4. Step 4: Simplify right side
    1,317.00x = 1,377,032.73
  5. Step 5: Solve for x
    x = 1,377,032.73/1,317.00
  6. Step 6: Final answer
    x = 1,045.59

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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.