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Finding the Fourth Proportional to 664,000.50, 996,009.39 and 220,768.50

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Solution

The fourth proportional to 664,000.50, 996,009.39 and 220,768.50 is: 331,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,000.50 : 996,009.39 = 220,768.50 : x
  2. Step 2: Convert to fraction form
    664,000.50/996,009.39 = 220,768.50/x
  3. Step 3: Cross multiply
    664,000.50x = 996,009.39 × 220,768.50
  4. Step 4: Simplify right side
    664,000.50x = 219,887,499,016.22
  5. Step 5: Solve for x
    x = 219,887,499,016.22/664,000.50
  6. Step 6: Final answer
    x = 331,155.62

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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.