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Finding the Fourth Proportional to 647,682.73, 971,739.04 and 198,408.01

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Solution

The fourth proportional to 647,682.73, 971,739.04 and 198,408.01 is: 297,677.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,682.73 : 971,739.04 = 198,408.01 : x
  2. Step 2: Convert to fraction form
    647,682.73/971,739.04 = 198,408.01/x
  3. Step 3: Cross multiply
    647,682.73x = 971,739.04 × 198,408.01
  4. Step 4: Simplify right side
    647,682.73x = 192,800,809,165.71
  5. Step 5: Solve for x
    x = 192,800,809,165.71/647,682.73
  6. Step 6: Final answer
    x = 297,677.86

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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.