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Finding the Fourth Proportional to 1,073.28, 1,610.04 and 414.99

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Solution

The fourth proportional to 1,073.28, 1,610.04 and 414.99 is: 622.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.28 : 1,610.04 = 414.99 : x
  2. Step 2: Convert to fraction form
    1,073.28/1,610.04 = 414.99/x
  3. Step 3: Cross multiply
    1,073.28x = 1,610.04 × 414.99
  4. Step 4: Simplify right side
    1,073.28x = 668,150.50
  5. Step 5: Solve for x
    x = 668,150.50/1,073.28
  6. Step 6: Final answer
    x = 622.53

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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.