Home / 638,121.20-957,320.19-188,873.64

Finding the Fourth Proportional to 638,121.20, 957,320.19 and 188,873.64

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Solution

The fourth proportional to 638,121.20, 957,320.19 and 188,873.64 is: 283,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,121.20 : 957,320.19 = 188,873.64 : x
  2. Step 2: Convert to fraction form
    638,121.20/957,320.19 = 188,873.64/x
  3. Step 3: Cross multiply
    638,121.20x = 957,320.19 × 188,873.64
  4. Step 4: Simplify right side
    638,121.20x = 180,812,548,930.79
  5. Step 5: Solve for x
    x = 180,812,548,930.79/638,121.20
  6. Step 6: Final answer
    x = 283,351.42

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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.