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Finding the Fourth Proportional to 1,150.22, 1,725.01 and 328.48

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Solution

The fourth proportional to 1,150.22, 1,725.01 and 328.48 is: 492.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.22 : 1,725.01 = 328.48 : x
  2. Step 2: Convert to fraction form
    1,150.22/1,725.01 = 328.48/x
  3. Step 3: Cross multiply
    1,150.22x = 1,725.01 × 328.48
  4. Step 4: Simplify right side
    1,150.22x = 566,631.28
  5. Step 5: Solve for x
    x = 566,631.28/1,150.22
  6. Step 6: Final answer
    x = 492.63

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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.