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Finding the Third Proportional to 667,358 and 1,439,700

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Solution

The third proportional to 667,358 and 1,439,700 is: 3,105,883.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,358 : 1,439,700 = 1,439,700 : x
  2. Step 2: Convert to fraction form
    667,358/1,439,700 = 1,439,700/x
  3. Step 3: Cross multiply
    667,358x = 1,439,700 × 1,439,700
  4. Step 4: Simplify right side
    667,358x = 2,072,736,090,000
  5. Step 5: Solve for x
    x = 2,072,736,090,000/667,358
  6. Step 6: Final answer
    x = 3,105,883.33

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.