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Finding the Fourth Proportional to 1,193.03, 1,787.93 and 759.41

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Solution

The fourth proportional to 1,193.03, 1,787.93 and 759.41 is: 1,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.03 : 1,787.93 = 759.41 : x
  2. Step 2: Convert to fraction form
    1,193.03/1,787.93 = 759.41/x
  3. Step 3: Cross multiply
    1,193.03x = 1,787.93 × 759.41
  4. Step 4: Simplify right side
    1,193.03x = 1,357,768.12
  5. Step 5: Solve for x
    x = 1,357,768.12/1,193.03
  6. Step 6: Final answer
    x = 1,138.08

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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.