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Finding the Fourth Proportional to 1,044.91, 1,566.44 and 396.10

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Solution

The fourth proportional to 1,044.91, 1,566.44 and 396.10 is: 593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.91 : 1,566.44 = 396.10 : x
  2. Step 2: Convert to fraction form
    1,044.91/1,566.44 = 396.10/x
  3. Step 3: Cross multiply
    1,044.91x = 1,566.44 × 396.10
  4. Step 4: Simplify right side
    1,044.91x = 620,470.55
  5. Step 5: Solve for x
    x = 620,470.55/1,044.91
  6. Step 6: Final answer
    x = 593.80

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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.