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Finding the Fourth Proportional to 1,074.12, 1,610.58 and 496.44

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Solution

The fourth proportional to 1,074.12, 1,610.58 and 496.44 is: 744.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.12 : 1,610.58 = 496.44 : x
  2. Step 2: Convert to fraction form
    1,074.12/1,610.58 = 496.44/x
  3. Step 3: Cross multiply
    1,074.12x = 1,610.58 × 496.44
  4. Step 4: Simplify right side
    1,074.12x = 799,556.34
  5. Step 5: Solve for x
    x = 799,556.34/1,074.12
  6. Step 6: Final answer
    x = 744.38

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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.