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Finding the Fourth Proportional to 469,393.62, 647,593.41 and 308,336.34

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Solution

The fourth proportional to 469,393.62, 647,593.41 and 308,336.34 is: 425,392.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,393.62 : 647,593.41 = 308,336.34 : x
  2. Step 2: Convert to fraction form
    469,393.62/647,593.41 = 308,336.34/x
  3. Step 3: Cross multiply
    469,393.62x = 647,593.41 × 308,336.34
  4. Step 4: Simplify right side
    469,393.62x = 199,676,581,847.52
  5. Step 5: Solve for x
    x = 199,676,581,847.52/469,393.62
  6. Step 6: Final answer
    x = 425,392.62

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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.