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Finding the Fourth Proportional to 466,631, 644,149.82 and 313,757.80

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Solution

The fourth proportional to 466,631, 644,149.82 and 313,757.80 is: 433,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,631 : 644,149.82 = 313,757.80 : x
  2. Step 2: Convert to fraction form
    466,631/644,149.82 = 313,757.80/x
  3. Step 3: Cross multiply
    466,631x = 644,149.82 × 313,757.80
  4. Step 4: Simplify right side
    466,631x = 202,107,030,393.60
  5. Step 5: Solve for x
    x = 202,107,030,393.60/466,631
  6. Step 6: Final answer
    x = 433,119.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.