Home / 414,064.43-621,096.90-129,777.15

Finding the Fourth Proportional to 414,064.43, 621,096.90 and 129,777.15

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Solution

The fourth proportional to 414,064.43, 621,096.90 and 129,777.15 is: 194,665.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,064.43 : 621,096.90 = 129,777.15 : x
  2. Step 2: Convert to fraction form
    414,064.43/621,096.90 = 129,777.15/x
  3. Step 3: Cross multiply
    414,064.43x = 621,096.90 × 129,777.15
  4. Step 4: Simplify right side
    414,064.43x = 80,604,185,555.84
  5. Step 5: Solve for x
    x = 80,604,185,555.84/414,064.43
  6. Step 6: Final answer
    x = 194,665.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.