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Finding the Fourth Proportional to 1,181.54, 1,772.51 and 532.32

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Solution

The fourth proportional to 1,181.54, 1,772.51 and 532.32 is: 798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.54 : 1,772.51 = 532.32 : x
  2. Step 2: Convert to fraction form
    1,181.54/1,772.51 = 532.32/x
  3. Step 3: Cross multiply
    1,181.54x = 1,772.51 × 532.32
  4. Step 4: Simplify right side
    1,181.54x = 943,542.52
  5. Step 5: Solve for x
    x = 943,542.52/1,181.54
  6. Step 6: Final answer
    x = 798.57

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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.