Home / 1,229,076.18-1,696,131.90-685,245.96

Finding the Fourth Proportional to 1,229,076.18, 1,696,131.90 and 685,245.96

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Solution

The fourth proportional to 1,229,076.18, 1,696,131.90 and 685,245.96 is: 945,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,076.18 : 1,696,131.90 = 685,245.96 : x
  2. Step 2: Convert to fraction form
    1,229,076.18/1,696,131.90 = 685,245.96/x
  3. Step 3: Cross multiply
    1,229,076.18x = 1,696,131.90 × 685,245.96
  4. Step 4: Simplify right side
    1,229,076.18x = 1,162,267,532,102.12
  5. Step 5: Solve for x
    x = 1,162,267,532,102.12/1,229,076.18
  6. Step 6: Final answer
    x = 945,643.20

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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.