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Finding the Fourth Proportional to 1,073.48, 1,610.20 and 333.10

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Solution

The fourth proportional to 1,073.48, 1,610.20 and 333.10 is: 499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.48 : 1,610.20 = 333.10 : x
  2. Step 2: Convert to fraction form
    1,073.48/1,610.20 = 333.10/x
  3. Step 3: Cross multiply
    1,073.48x = 1,610.20 × 333.10
  4. Step 4: Simplify right side
    1,073.48x = 536,357.62
  5. Step 5: Solve for x
    x = 536,357.62/1,073.48
  6. Step 6: Final answer
    x = 499.64

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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.