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Finding the Third Proportional to 352,408 and 545,892

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Solution

The third proportional to 352,408 and 545,892 is: 845,605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,408 : 545,892 = 545,892 : x
  2. Step 2: Convert to fraction form
    352,408/545,892 = 545,892/x
  3. Step 3: Cross multiply
    352,408x = 545,892 × 545,892
  4. Step 4: Simplify right side
    352,408x = 297,998,075,664
  5. Step 5: Solve for x
    x = 297,998,075,664/352,408
  6. Step 6: Final answer
    x = 845,605.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.