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Finding the Fourth Proportional to 647,606.54, 970,821.74 and 226,652.78

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Solution

The fourth proportional to 647,606.54, 970,821.74 and 226,652.78 is: 339,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,606.54 : 970,821.74 = 226,652.78 : x
  2. Step 2: Convert to fraction form
    647,606.54/970,821.74 = 226,652.78/x
  3. Step 3: Cross multiply
    647,606.54x = 970,821.74 × 226,652.78
  4. Step 4: Simplify right side
    647,606.54x = 220,039,446,255.44
  5. Step 5: Solve for x
    x = 220,039,446,255.44/647,606.54
  6. Step 6: Final answer
    x = 339,773.35

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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.