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Finding the Fourth Proportional to 1,355.88, 2,032.20 and 1,193.88

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Solution

The fourth proportional to 1,355.88, 2,032.20 and 1,193.88 is: 1,789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.88 : 2,032.20 = 1,193.88 : x
  2. Step 2: Convert to fraction form
    1,355.88/2,032.20 = 1,193.88/x
  3. Step 3: Cross multiply
    1,355.88x = 2,032.20 × 1,193.88
  4. Step 4: Simplify right side
    1,355.88x = 2,426,202.94
  5. Step 5: Solve for x
    x = 2,426,202.94/1,355.88
  6. Step 6: Final answer
    x = 1,789.39

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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.