Home / 414,215.82-621,325.35-126,030.33

Finding the Fourth Proportional to 414,215.82, 621,325.35 and 126,030.33

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Solution

The fourth proportional to 414,215.82, 621,325.35 and 126,030.33 is: 189,045.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,215.82 : 621,325.35 = 126,030.33 : x
  2. Step 2: Convert to fraction form
    414,215.82/621,325.35 = 126,030.33/x
  3. Step 3: Cross multiply
    414,215.82x = 621,325.35 × 126,030.33
  4. Step 4: Simplify right side
    414,215.82x = 78,305,838,897.87
  5. Step 5: Solve for x
    x = 78,305,838,897.87/414,215.82
  6. Step 6: Final answer
    x = 189,045.99

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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.