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Finding the Fourth Proportional to 554, 829.32 and 369.92

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Solution

The fourth proportional to 554, 829.32 and 369.92 is: 553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    554 : 829.32 = 369.92 : x
  2. Step 2: Convert to fraction form
    554/829.32 = 369.92/x
  3. Step 3: Cross multiply
    554x = 829.32 × 369.92
  4. Step 4: Simplify right side
    554x = 306,782.05
  5. Step 5: Solve for x
    x = 306,782.05/554
  6. Step 6: Final answer
    x = 553.76

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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.