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Finding the Fourth Proportional to 1,026.72, 1,540.28 and 333.33

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Solution

The fourth proportional to 1,026.72, 1,540.28 and 333.33 is: 500.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.72 : 1,540.28 = 333.33 : x
  2. Step 2: Convert to fraction form
    1,026.72/1,540.28 = 333.33/x
  3. Step 3: Cross multiply
    1,026.72x = 1,540.28 × 333.33
  4. Step 4: Simplify right side
    1,026.72x = 513,419.87
  5. Step 5: Solve for x
    x = 513,419.87/1,026.72
  6. Step 6: Final answer
    x = 500.06

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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.