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Finding the Fourth Proportional to 699,450.20, 965,241.33 and 397,644.20

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Solution

The fourth proportional to 699,450.20, 965,241.33 and 397,644.20 is: 548,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,450.20 : 965,241.33 = 397,644.20 : x
  2. Step 2: Convert to fraction form
    699,450.20/965,241.33 = 397,644.20/x
  3. Step 3: Cross multiply
    699,450.20x = 965,241.33 × 397,644.20
  4. Step 4: Simplify right side
    699,450.20x = 383,822,617,893.78
  5. Step 5: Solve for x
    x = 383,822,617,893.78/699,450.20
  6. Step 6: Final answer
    x = 548,749.03

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.