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Finding the Third Proportional to 851,406 and 1,318,416

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Solution

The third proportional to 851,406 and 1,318,416 is: 2,041,588.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,406 : 1,318,416 = 1,318,416 : x
  2. Step 2: Convert to fraction form
    851,406/1,318,416 = 1,318,416/x
  3. Step 3: Cross multiply
    851,406x = 1,318,416 × 1,318,416
  4. Step 4: Simplify right side
    851,406x = 1,738,220,749,056
  5. Step 5: Solve for x
    x = 1,738,220,749,056/851,406
  6. Step 6: Final answer
    x = 2,041,588.56

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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.