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Finding the Fourth Proportional to 1,049.73, 1,574.52 and 400.44

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Solution

The fourth proportional to 1,049.73, 1,574.52 and 400.44 is: 600.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.73 : 1,574.52 = 400.44 : x
  2. Step 2: Convert to fraction form
    1,049.73/1,574.52 = 400.44/x
  3. Step 3: Cross multiply
    1,049.73x = 1,574.52 × 400.44
  4. Step 4: Simplify right side
    1,049.73x = 630,500.79
  5. Step 5: Solve for x
    x = 630,500.79/1,049.73
  6. Step 6: Final answer
    x = 600.63

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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.