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Finding the Fourth Proportional to 1,022.25, 1,532.18 and 473.31

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Solution

The fourth proportional to 1,022.25, 1,532.18 and 473.31 is: 709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.25 : 1,532.18 = 473.31 : x
  2. Step 2: Convert to fraction form
    1,022.25/1,532.18 = 473.31/x
  3. Step 3: Cross multiply
    1,022.25x = 1,532.18 × 473.31
  4. Step 4: Simplify right side
    1,022.25x = 725,197.30
  5. Step 5: Solve for x
    x = 725,197.30/1,022.25
  6. Step 6: Final answer
    x = 709.41

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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.