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Finding the Fourth Proportional to 1,736.97, 2,606.43 and 697.05

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Solution

The fourth proportional to 1,736.97, 2,606.43 and 697.05 is: 1,045.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.97 : 2,606.43 = 697.05 : x
  2. Step 2: Convert to fraction form
    1,736.97/2,606.43 = 697.05/x
  3. Step 3: Cross multiply
    1,736.97x = 2,606.43 × 697.05
  4. Step 4: Simplify right side
    1,736.97x = 1,816,812.03
  5. Step 5: Solve for x
    x = 1,816,812.03/1,736.97
  6. Step 6: Final answer
    x = 1,045.97

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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.