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Finding the Third Proportional to 530,930 and 822,075

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Solution

The third proportional to 530,930 and 822,075 is: 1,272,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,930 : 822,075 = 822,075 : x
  2. Step 2: Convert to fraction form
    530,930/822,075 = 822,075/x
  3. Step 3: Cross multiply
    530,930x = 822,075 × 822,075
  4. Step 4: Simplify right side
    530,930x = 675,807,305,625
  5. Step 5: Solve for x
    x = 675,807,305,625/530,930
  6. Step 6: Final answer
    x = 1,272,874.59

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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.