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Finding the Third Proportional to 636,872 and 929,055

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Solution

The third proportional to 636,872 and 929,055 is: 1,355,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,872 : 929,055 = 929,055 : x
  2. Step 2: Convert to fraction form
    636,872/929,055 = 929,055/x
  3. Step 3: Cross multiply
    636,872x = 929,055 × 929,055
  4. Step 4: Simplify right side
    636,872x = 863,143,193,025
  5. Step 5: Solve for x
    x = 863,143,193,025/636,872
  6. Step 6: Final answer
    x = 1,355,285.20

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.