Home / 1,204,351.25-1,662,186.80-688,213.79

Finding the Fourth Proportional to 1,204,351.25, 1,662,186.80 and 688,213.79

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Solution

The fourth proportional to 1,204,351.25, 1,662,186.80 and 688,213.79 is: 949,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,351.25 : 1,662,186.80 = 688,213.79 : x
  2. Step 2: Convert to fraction form
    1,204,351.25/1,662,186.80 = 688,213.79/x
  3. Step 3: Cross multiply
    1,204,351.25x = 1,662,186.80 × 688,213.79
  4. Step 4: Simplify right side
    1,204,351.25x = 1,143,939,865,563.97
  5. Step 5: Solve for x
    x = 1,143,939,865,563.97/1,204,351.25
  6. Step 6: Final answer
    x = 949,839.07

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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.