Home / 1,282,768.22-1,770,195.09-709,808.78

Finding the Fourth Proportional to 1,282,768.22, 1,770,195.09 and 709,808.78

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Solution

The fourth proportional to 1,282,768.22, 1,770,195.09 and 709,808.78 is: 979,522.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,768.22 : 1,770,195.09 = 709,808.78 : x
  2. Step 2: Convert to fraction form
    1,282,768.22/1,770,195.09 = 709,808.78/x
  3. Step 3: Cross multiply
    1,282,768.22x = 1,770,195.09 × 709,808.78
  4. Step 4: Simplify right side
    1,282,768.22x = 1,256,500,017,194.89
  5. Step 5: Solve for x
    x = 1,256,500,017,194.89/1,282,768.22
  6. Step 6: Final answer
    x = 979,522.25

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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.