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Finding the Fourth Proportional to 647,190.52, 971,223.18 and 226,470.04

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Solution

The fourth proportional to 647,190.52, 971,223.18 and 226,470.04 is: 339,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,190.52 : 971,223.18 = 226,470.04 : x
  2. Step 2: Convert to fraction form
    647,190.52/971,223.18 = 226,470.04/x
  3. Step 3: Cross multiply
    647,190.52x = 971,223.18 × 226,470.04
  4. Step 4: Simplify right side
    647,190.52x = 219,952,952,423.53
  5. Step 5: Solve for x
    x = 219,952,952,423.53/647,190.52
  6. Step 6: Final answer
    x = 339,858.12

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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.