Home / 1,229,002.04-1,695,936.20-685,113.78

Finding the Fourth Proportional to 1,229,002.04, 1,695,936.20 and 685,113.78

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Solution

The fourth proportional to 1,229,002.04, 1,695,936.20 and 685,113.78 is: 945,408.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,002.04 : 1,695,936.20 = 685,113.78 : x
  2. Step 2: Convert to fraction form
    1,229,002.04/1,695,936.20 = 685,113.78/x
  3. Step 3: Cross multiply
    1,229,002.04x = 1,695,936.20 × 685,113.78
  4. Step 4: Simplify right side
    1,229,002.04x = 1,161,909,260,620.84
  5. Step 5: Solve for x
    x = 1,161,909,260,620.84/1,229,002.04
  6. Step 6: Final answer
    x = 945,408.73

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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.