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Finding the Fourth Proportional to 547,879.63, 821,819.46 and 148,520.38

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Solution

The fourth proportional to 547,879.63, 821,819.46 and 148,520.38 is: 222,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,879.63 : 821,819.46 = 148,520.38 : x
  2. Step 2: Convert to fraction form
    547,879.63/821,819.46 = 148,520.38/x
  3. Step 3: Cross multiply
    547,879.63x = 821,819.46 × 148,520.38
  4. Step 4: Simplify right side
    547,879.63x = 122,056,938,490.60
  5. Step 5: Solve for x
    x = 122,056,938,490.60/547,879.63
  6. Step 6: Final answer
    x = 222,780.57

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Similar ratio
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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.