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Finding the Fourth Proportional to 483,490.80, 725,236.20 and 146,514.60

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Solution

The fourth proportional to 483,490.80, 725,236.20 and 146,514.60 is: 219,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,490.80 : 725,236.20 = 146,514.60 : x
  2. Step 2: Convert to fraction form
    483,490.80/725,236.20 = 146,514.60/x
  3. Step 3: Cross multiply
    483,490.80x = 725,236.20 × 146,514.60
  4. Step 4: Simplify right side
    483,490.80x = 106,257,691,748.52
  5. Step 5: Solve for x
    x = 106,257,691,748.52/483,490.80
  6. Step 6: Final answer
    x = 219,771.90

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Similar ratio
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1.5x scale

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.