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Finding the Fourth Proportional to 260,453.73, 389,614.82 and 196,800.69

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Solution

The fourth proportional to 260,453.73, 389,614.82 and 196,800.69 is: 294,395.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,453.73 : 389,614.82 = 196,800.69 : x
  2. Step 2: Convert to fraction form
    260,453.73/389,614.82 = 196,800.69/x
  3. Step 3: Cross multiply
    260,453.73x = 389,614.82 × 196,800.69
  4. Step 4: Simplify right side
    260,453.73x = 76,676,464,426.22
  5. Step 5: Solve for x
    x = 76,676,464,426.22/260,453.73
  6. Step 6: Final answer
    x = 294,395.72

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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.