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Finding the Fourth Proportional to 936.56, 1,401.75 and 730.52

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Solution

The fourth proportional to 936.56, 1,401.75 and 730.52 is: 1,093.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.56 : 1,401.75 = 730.52 : x
  2. Step 2: Convert to fraction form
    936.56/1,401.75 = 730.52/x
  3. Step 3: Cross multiply
    936.56x = 1,401.75 × 730.52
  4. Step 4: Simplify right side
    936.56x = 1,024,006.41
  5. Step 5: Solve for x
    x = 1,024,006.41/936.56
  6. Step 6: Final answer
    x = 1,093.37

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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.