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Finding the Fourth Proportional to 664,295.64, 996,601.64 and 215,016.59

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Solution

The fourth proportional to 664,295.64, 996,601.64 and 215,016.59 is: 322,576.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,295.64 : 996,601.64 = 215,016.59 : x
  2. Step 2: Convert to fraction form
    664,295.64/996,601.64 = 215,016.59/x
  3. Step 3: Cross multiply
    664,295.64x = 996,601.64 × 215,016.59
  4. Step 4: Simplify right side
    664,295.64x = 214,285,880,163.12
  5. Step 5: Solve for x
    x = 214,285,880,163.12/664,295.64
  6. Step 6: Final answer
    x = 322,576.07

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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.