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Finding the Fourth Proportional to 1,794.54, 2,691.54 and 624.72

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Solution

The fourth proportional to 1,794.54, 2,691.54 and 624.72 is: 936.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.54 : 2,691.54 = 624.72 : x
  2. Step 2: Convert to fraction form
    1,794.54/2,691.54 = 624.72/x
  3. Step 3: Cross multiply
    1,794.54x = 2,691.54 × 624.72
  4. Step 4: Simplify right side
    1,794.54x = 1,681,458.87
  5. Step 5: Solve for x
    x = 1,681,458.87/1,794.54
  6. Step 6: Final answer
    x = 936.99

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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.