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Finding the Third Proportional to 851,840 and 1,318,800

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Solution

The third proportional to 851,840 and 1,318,800 is: 2,041,737.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,840 : 1,318,800 = 1,318,800 : x
  2. Step 2: Convert to fraction form
    851,840/1,318,800 = 1,318,800/x
  3. Step 3: Cross multiply
    851,840x = 1,318,800 × 1,318,800
  4. Step 4: Simplify right side
    851,840x = 1,739,233,440,000
  5. Step 5: Solve for x
    x = 1,739,233,440,000/851,840
  6. Step 6: Final answer
    x = 2,041,737.23

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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.