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Finding the Third Proportional to 639,772 and 1,358,264

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Solution

The third proportional to 639,772 and 1,358,264 is: 2,883,654.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,772 : 1,358,264 = 1,358,264 : x
  2. Step 2: Convert to fraction form
    639,772/1,358,264 = 1,358,264/x
  3. Step 3: Cross multiply
    639,772x = 1,358,264 × 1,358,264
  4. Step 4: Simplify right side
    639,772x = 1,844,881,093,696
  5. Step 5: Solve for x
    x = 1,844,881,093,696/639,772
  6. Step 6: Final answer
    x = 2,883,654.01

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.