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Finding the Fourth Proportional to 1,429.05, 2,144.93 and 736.20

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Solution

The fourth proportional to 1,429.05, 2,144.93 and 736.20 is: 1,104.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.05 : 2,144.93 = 736.20 : x
  2. Step 2: Convert to fraction form
    1,429.05/2,144.93 = 736.20/x
  3. Step 3: Cross multiply
    1,429.05x = 2,144.93 × 736.20
  4. Step 4: Simplify right side
    1,429.05x = 1,579,091.89
  5. Step 5: Solve for x
    x = 1,579,091.89/1,429.05
  6. Step 6: Final answer
    x = 1,104.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.