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Finding the Fourth Proportional to 1,297.98, 1,946.97 and 932.94

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Solution

The fourth proportional to 1,297.98, 1,946.97 and 932.94 is: 1,399.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297.98 : 1,946.97 = 932.94 : x
  2. Step 2: Convert to fraction form
    1,297.98/1,946.97 = 932.94/x
  3. Step 3: Cross multiply
    1,297.98x = 1,946.97 × 932.94
  4. Step 4: Simplify right side
    1,297.98x = 1,816,406.19
  5. Step 5: Solve for x
    x = 1,816,406.19/1,297.98
  6. Step 6: Final answer
    x = 1,399.41

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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.