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Finding the Fourth Proportional to 800,627.70, 1,192,881.98 and 789,080.34

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Solution

The fourth proportional to 800,627.70, 1,192,881.98 and 789,080.34 is: 1,175,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,627.70 : 1,192,881.98 = 789,080.34 : x
  2. Step 2: Convert to fraction form
    800,627.70/1,192,881.98 = 789,080.34/x
  3. Step 3: Cross multiply
    800,627.70x = 1,192,881.98 × 789,080.34
  4. Step 4: Simplify right side
    800,627.70x = 941,279,714,412.87
  5. Step 5: Solve for x
    x = 941,279,714,412.87/800,627.70
  6. Step 6: Final answer
    x = 1,175,677.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.