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Finding the Fourth Proportional to 591,295.25, 886,211.09 and 420,244.34

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Solution

The fourth proportional to 591,295.25, 886,211.09 and 420,244.34 is: 629,846.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,295.25 : 886,211.09 = 420,244.34 : x
  2. Step 2: Convert to fraction form
    591,295.25/886,211.09 = 420,244.34/x
  3. Step 3: Cross multiply
    591,295.25x = 886,211.09 × 420,244.34
  4. Step 4: Simplify right side
    591,295.25x = 372,425,188,085.45
  5. Step 5: Solve for x
    x = 372,425,188,085.45/591,295.25
  6. Step 6: Final answer
    x = 629,846.41

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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.