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Finding the Third Proportional to 144,634 and 311,466

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Solution

The third proportional to 144,634 and 311,466 is: 670,734.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,634 : 311,466 = 311,466 : x
  2. Step 2: Convert to fraction form
    144,634/311,466 = 311,466/x
  3. Step 3: Cross multiply
    144,634x = 311,466 × 311,466
  4. Step 4: Simplify right side
    144,634x = 97,011,069,156
  5. Step 5: Solve for x
    x = 97,011,069,156/144,634
  6. Step 6: Final answer
    x = 670,734.88

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.