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Finding the Third Proportional to 311,091 and 466,518

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Solution

The third proportional to 311,091 and 466,518 is: 699,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,091 : 466,518 = 466,518 : x
  2. Step 2: Convert to fraction form
    311,091/466,518 = 466,518/x
  3. Step 3: Cross multiply
    311,091x = 466,518 × 466,518
  4. Step 4: Simplify right side
    311,091x = 217,639,044,324
  5. Step 5: Solve for x
    x = 217,639,044,324/311,091
  6. Step 6: Final answer
    x = 699,599.30

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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.