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Finding the Fourth Proportional to 1,181.55, 1,771.92 and 532.14

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Solution

The fourth proportional to 1,181.55, 1,771.92 and 532.14 is: 798.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.55 : 1,771.92 = 532.14 : x
  2. Step 2: Convert to fraction form
    1,181.55/1,771.92 = 532.14/x
  3. Step 3: Cross multiply
    1,181.55x = 1,771.92 × 532.14
  4. Step 4: Simplify right side
    1,181.55x = 942,909.51
  5. Step 5: Solve for x
    x = 942,909.51/1,181.55
  6. Step 6: Final answer
    x = 798.03

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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.