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Finding the Fourth Proportional to 664,593, 996,889.50 and 197,649

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Solution

The fourth proportional to 664,593, 996,889.50 and 197,649 is: 296,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,593 : 996,889.50 = 197,649 : x
  2. Step 2: Convert to fraction form
    664,593/996,889.50 = 197,649/x
  3. Step 3: Cross multiply
    664,593x = 996,889.50 × 197,649
  4. Step 4: Simplify right side
    664,593x = 197,034,212,785.50
  5. Step 5: Solve for x
    x = 197,034,212,785.50/664,593
  6. Step 6: Final answer
    x = 296,473.50

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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.