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Finding the Fourth Proportional to 647,188.52, 971,220.18 and 226,468.04

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Solution

The fourth proportional to 647,188.52, 971,220.18 and 226,468.04 is: 339,855.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,188.52 : 971,220.18 = 226,468.04 : x
  2. Step 2: Convert to fraction form
    647,188.52/971,220.18 = 226,468.04/x
  3. Step 3: Cross multiply
    647,188.52x = 971,220.18 × 226,468.04
  4. Step 4: Simplify right side
    647,188.52x = 219,950,330,573.05
  5. Step 5: Solve for x
    x = 219,950,330,573.05/647,188.52
  6. Step 6: Final answer
    x = 339,855.12

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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.