Home / 961,812.80-1,327,063.20-621,872

Finding the Fourth Proportional to 961,812.80, 1,327,063.20 and 621,872

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Solution

The fourth proportional to 961,812.80, 1,327,063.20 and 621,872 is: 858,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,812.80 : 1,327,063.20 = 621,872 : x
  2. Step 2: Convert to fraction form
    961,812.80/1,327,063.20 = 621,872/x
  3. Step 3: Cross multiply
    961,812.80x = 1,327,063.20 × 621,872
  4. Step 4: Simplify right side
    961,812.80x = 825,263,446,310.40
  5. Step 5: Solve for x
    x = 825,263,446,310.40/961,812.80
  6. Step 6: Final answer
    x = 858,029.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.