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Finding the Fourth Proportional to 1,125.98, 1,553.36 and 733.04

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Solution

The fourth proportional to 1,125.98, 1,553.36 and 733.04 is: 1,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.98 : 1,553.36 = 733.04 : x
  2. Step 2: Convert to fraction form
    1,125.98/1,553.36 = 733.04/x
  3. Step 3: Cross multiply
    1,125.98x = 1,553.36 × 733.04
  4. Step 4: Simplify right side
    1,125.98x = 1,138,675.01
  5. Step 5: Solve for x
    x = 1,138,675.01/1,125.98
  6. Step 6: Final answer
    x = 1,011.27

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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.