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Finding the Fourth Proportional to 1,168.70, 1,752.44 and 552.54

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Solution

The fourth proportional to 1,168.70, 1,752.44 and 552.54 is: 828.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.70 : 1,752.44 = 552.54 : x
  2. Step 2: Convert to fraction form
    1,168.70/1,752.44 = 552.54/x
  3. Step 3: Cross multiply
    1,168.70x = 1,752.44 × 552.54
  4. Step 4: Simplify right side
    1,168.70x = 968,293.20
  5. Step 5: Solve for x
    x = 968,293.20/1,168.70
  6. Step 6: Final answer
    x = 828.52

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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.