Home / 413,923.92-620,609.40-129,518.16

Finding the Fourth Proportional to 413,923.92, 620,609.40 and 129,518.16

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Solution

The fourth proportional to 413,923.92, 620,609.40 and 129,518.16 is: 194,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,923.92 : 620,609.40 = 129,518.16 : x
  2. Step 2: Convert to fraction form
    413,923.92/620,609.40 = 129,518.16/x
  3. Step 3: Cross multiply
    413,923.92x = 620,609.40 × 129,518.16
  4. Step 4: Simplify right side
    413,923.92x = 80,380,187,566.70
  5. Step 5: Solve for x
    x = 80,380,187,566.70/413,923.92
  6. Step 6: Final answer
    x = 194,190.73

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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.