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Finding the Fourth Proportional to 624,650.70, 936,745.65 and 203,940.30

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Solution

The fourth proportional to 624,650.70, 936,745.65 and 203,940.30 is: 305,835.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,650.70 : 936,745.65 = 203,940.30 : x
  2. Step 2: Convert to fraction form
    624,650.70/936,745.65 = 203,940.30/x
  3. Step 3: Cross multiply
    624,650.70x = 936,745.65 × 203,940.30
  4. Step 4: Simplify right side
    624,650.70x = 191,040,188,884.70
  5. Step 5: Solve for x
    x = 191,040,188,884.70/624,650.70
  6. Step 6: Final answer
    x = 305,835.23

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1.5x scale

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.