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Finding the Fourth Proportional to 647,674.33, 971,576.31 and 198,390.01

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Solution

The fourth proportional to 647,674.33, 971,576.31 and 198,390.01 is: 297,604.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,674.33 : 971,576.31 = 198,390.01 : x
  2. Step 2: Convert to fraction form
    647,674.33/971,576.31 = 198,390.01/x
  3. Step 3: Cross multiply
    647,674.33x = 971,576.31 × 198,390.01
  4. Step 4: Simplify right side
    647,674.33x = 192,751,033,856.66
  5. Step 5: Solve for x
    x = 192,751,033,856.66/647,674.33
  6. Step 6: Final answer
    x = 297,604.87

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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.