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Finding the Third Proportional to 789,639 and 1,255,194

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Solution

The third proportional to 789,639 and 1,255,194 is: 1,995,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,639 : 1,255,194 = 1,255,194 : x
  2. Step 2: Convert to fraction form
    789,639/1,255,194 = 1,255,194/x
  3. Step 3: Cross multiply
    789,639x = 1,255,194 × 1,255,194
  4. Step 4: Simplify right side
    789,639x = 1,575,511,977,636
  5. Step 5: Solve for x
    x = 1,575,511,977,636/789,639
  6. Step 6: Final answer
    x = 1,995,230.70

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.