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Finding the Fourth Proportional to 1,351.38, 2,026.16 and 529.44

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Solution

The fourth proportional to 1,351.38, 2,026.16 and 529.44 is: 793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.38 : 2,026.16 = 529.44 : x
  2. Step 2: Convert to fraction form
    1,351.38/2,026.16 = 529.44/x
  3. Step 3: Cross multiply
    1,351.38x = 2,026.16 × 529.44
  4. Step 4: Simplify right side
    1,351.38x = 1,072,724.87
  5. Step 5: Solve for x
    x = 1,072,724.87/1,351.38
  6. Step 6: Final answer
    x = 793.80

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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.