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Finding the Fourth Proportional to 624,608.70, 936,682.65 and 203,898.30

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Solution

The fourth proportional to 624,608.70, 936,682.65 and 203,898.30 is: 305,772.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,608.70 : 936,682.65 = 203,898.30 : x
  2. Step 2: Convert to fraction form
    624,608.70/936,682.65 = 203,898.30/x
  3. Step 3: Cross multiply
    624,608.70x = 936,682.65 × 203,898.30
  4. Step 4: Simplify right side
    624,608.70x = 190,987,999,974.50
  5. Step 5: Solve for x
    x = 190,987,999,974.50/624,608.70
  6. Step 6: Final answer
    x = 305,772.24

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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.