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Finding the Fourth Proportional to 1,096.22, 1,644.44 and 316.22

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Solution

The fourth proportional to 1,096.22, 1,644.44 and 316.22 is: 474.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096.22 : 1,644.44 = 316.22 : x
  2. Step 2: Convert to fraction form
    1,096.22/1,644.44 = 316.22/x
  3. Step 3: Cross multiply
    1,096.22x = 1,644.44 × 316.22
  4. Step 4: Simplify right side
    1,096.22x = 519,995.01
  5. Step 5: Solve for x
    x = 519,995.01/1,096.22
  6. Step 6: Final answer
    x = 474.35

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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.