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Finding the Third Proportional to 285,393 and 419,814

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Solution

The third proportional to 285,393 and 419,814 is: 617,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,393 : 419,814 = 419,814 : x
  2. Step 2: Convert to fraction form
    285,393/419,814 = 419,814/x
  3. Step 3: Cross multiply
    285,393x = 419,814 × 419,814
  4. Step 4: Simplify right side
    285,393x = 176,243,794,596
  5. Step 5: Solve for x
    x = 176,243,794,596/285,393
  6. Step 6: Final answer
    x = 617,547.71

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.