Home / 414,048.85-621,072.50-129,761.17

Finding the Fourth Proportional to 414,048.85, 621,072.50 and 129,761.17

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Solution

The fourth proportional to 414,048.85, 621,072.50 and 129,761.17 is: 194,641.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,048.85 : 621,072.50 = 129,761.17 : x
  2. Step 2: Convert to fraction form
    414,048.85/621,072.50 = 129,761.17/x
  3. Step 3: Cross multiply
    414,048.85x = 621,072.50 × 129,761.17
  4. Step 4: Simplify right side
    414,048.85x = 80,591,092,053.34
  5. Step 5: Solve for x
    x = 80,591,092,053.34/414,048.85
  6. Step 6: Final answer
    x = 194,641.51

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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.