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Finding the Fourth Proportional to 1,364.41, 1,883.49 and 922.57

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Solution

The fourth proportional to 1,364.41, 1,883.49 and 922.57 is: 1,273.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.41 : 1,883.49 = 922.57 : x
  2. Step 2: Convert to fraction form
    1,364.41/1,883.49 = 922.57/x
  3. Step 3: Cross multiply
    1,364.41x = 1,883.49 × 922.57
  4. Step 4: Simplify right side
    1,364.41x = 1,737,651.37
  5. Step 5: Solve for x
    x = 1,737,651.37/1,364.41
  6. Step 6: Final answer
    x = 1,273.56

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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.