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Finding the Fourth Proportional to 744.24, 1,116.42 and 332.94

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Solution

The fourth proportional to 744.24, 1,116.42 and 332.94 is: 499.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.24 : 1,116.42 = 332.94 : x
  2. Step 2: Convert to fraction form
    744.24/1,116.42 = 332.94/x
  3. Step 3: Cross multiply
    744.24x = 1,116.42 × 332.94
  4. Step 4: Simplify right side
    744.24x = 371,700.87
  5. Step 5: Solve for x
    x = 371,700.87/744.24
  6. Step 6: Final answer
    x = 499.44

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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.