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Finding the Fourth Proportional to 882.56, 1,323.98 and 297.62

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Solution

The fourth proportional to 882.56, 1,323.98 and 297.62 is: 446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.56 : 1,323.98 = 297.62 : x
  2. Step 2: Convert to fraction form
    882.56/1,323.98 = 297.62/x
  3. Step 3: Cross multiply
    882.56x = 1,323.98 × 297.62
  4. Step 4: Simplify right side
    882.56x = 394,037.05
  5. Step 5: Solve for x
    x = 394,037.05/882.56
  6. Step 6: Final answer
    x = 446.47

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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.