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Finding the Fourth Proportional to 466,519.91, 699,371.62 and 387,217.46

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Solution

The fourth proportional to 466,519.91, 699,371.62 and 387,217.46 is: 580,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,519.91 : 699,371.62 = 387,217.46 : x
  2. Step 2: Convert to fraction form
    466,519.91/699,371.62 = 387,217.46/x
  3. Step 3: Cross multiply
    466,519.91x = 699,371.62 × 387,217.46
  4. Step 4: Simplify right side
    466,519.91x = 270,808,903,072.87
  5. Step 5: Solve for x
    x = 270,808,903,072.87/466,519.91
  6. Step 6: Final answer
    x = 580,487.35

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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.