Home / 414,124.20-621,200.10-114,579.72

Finding the Fourth Proportional to 414,124.20, 621,200.10 and 114,579.72

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Solution

The fourth proportional to 414,124.20, 621,200.10 and 114,579.72 is: 171,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,124.20 : 621,200.10 = 114,579.72 : x
  2. Step 2: Convert to fraction form
    414,124.20/621,200.10 = 114,579.72/x
  3. Step 3: Cross multiply
    414,124.20x = 621,200.10 × 114,579.72
  4. Step 4: Simplify right side
    414,124.20x = 71,176,933,521.97
  5. Step 5: Solve for x
    x = 71,176,933,521.97/414,124.20
  6. Step 6: Final answer
    x = 171,873.40

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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.