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Finding the Fourth Proportional to 1,181.33, 1,632.48 and 886.08

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Solution

The fourth proportional to 1,181.33, 1,632.48 and 886.08 is: 1,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.33 : 1,632.48 = 886.08 : x
  2. Step 2: Convert to fraction form
    1,181.33/1,632.48 = 886.08/x
  3. Step 3: Cross multiply
    1,181.33x = 1,632.48 × 886.08
  4. Step 4: Simplify right side
    1,181.33x = 1,446,507.88
  5. Step 5: Solve for x
    x = 1,446,507.88/1,181.33
  6. Step 6: Final answer
    x = 1,224.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.