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Finding the Fourth Proportional to 1,162.97, 1,744.46 and 297.28

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Solution

The fourth proportional to 1,162.97, 1,744.46 and 297.28 is: 445.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.97 : 1,744.46 = 297.28 : x
  2. Step 2: Convert to fraction form
    1,162.97/1,744.46 = 297.28/x
  3. Step 3: Cross multiply
    1,162.97x = 1,744.46 × 297.28
  4. Step 4: Simplify right side
    1,162.97x = 518,594.88
  5. Step 5: Solve for x
    x = 518,594.88/1,162.97
  6. Step 6: Final answer
    x = 445.92

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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.