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Finding the Fourth Proportional to 696.11, 1,043.99 and 202.52

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Solution

The fourth proportional to 696.11, 1,043.99 and 202.52 is: 303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.11 : 1,043.99 = 202.52 : x
  2. Step 2: Convert to fraction form
    696.11/1,043.99 = 202.52/x
  3. Step 3: Cross multiply
    696.11x = 1,043.99 × 202.52
  4. Step 4: Simplify right side
    696.11x = 211,425.34
  5. Step 5: Solve for x
    x = 211,425.34/696.11
  6. Step 6: Final answer
    x = 303.72

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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.