Home / 414,063.74-621,095.76-129,776.35

Finding the Fourth Proportional to 414,063.74, 621,095.76 and 129,776.35

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Solution

The fourth proportional to 414,063.74, 621,095.76 and 129,776.35 is: 194,664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,063.74 : 621,095.76 = 129,776.35 : x
  2. Step 2: Convert to fraction form
    414,063.74/621,095.76 = 129,776.35/x
  3. Step 3: Cross multiply
    414,063.74x = 621,095.76 × 129,776.35
  4. Step 4: Simplify right side
    414,063.74x = 80,603,540,733.28
  5. Step 5: Solve for x
    x = 80,603,540,733.28/414,063.74
  6. Step 6: Final answer
    x = 194,664.57

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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.