Home / 414,512.80-621,769.20-381,853.60

Finding the Fourth Proportional to 414,512.80, 621,769.20 and 381,853.60

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Solution

The fourth proportional to 414,512.80, 621,769.20 and 381,853.60 is: 572,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,512.80 : 621,769.20 = 381,853.60 : x
  2. Step 2: Convert to fraction form
    414,512.80/621,769.20 = 381,853.60/x
  3. Step 3: Cross multiply
    414,512.80x = 621,769.20 × 381,853.60
  4. Step 4: Simplify right side
    414,512.80x = 237,424,807,389.12
  5. Step 5: Solve for x
    x = 237,424,807,389.12/414,512.80
  6. Step 6: Final answer
    x = 572,780.40

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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.