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Finding the Fourth Proportional to 1,337.34, 1,844.80 and 938.84

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Solution

The fourth proportional to 1,337.34, 1,844.80 and 938.84 is: 1,295.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.34 : 1,844.80 = 938.84 : x
  2. Step 2: Convert to fraction form
    1,337.34/1,844.80 = 938.84/x
  3. Step 3: Cross multiply
    1,337.34x = 1,844.80 × 938.84
  4. Step 4: Simplify right side
    1,337.34x = 1,731,976.34
  5. Step 5: Solve for x
    x = 1,731,976.34/1,337.34
  6. Step 6: Final answer
    x = 1,295.09

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Why These Related Problems?

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