Home / 410,640.24-615,982.44-130,179.36

Finding the Fourth Proportional to 410,640.24, 615,982.44 and 130,179.36

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Solution

The fourth proportional to 410,640.24, 615,982.44 and 130,179.36 is: 195,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,640.24 : 615,982.44 = 130,179.36 : x
  2. Step 2: Convert to fraction form
    410,640.24/615,982.44 = 130,179.36/x
  3. Step 3: Cross multiply
    410,640.24x = 615,982.44 × 130,179.36
  4. Step 4: Simplify right side
    410,640.24x = 80,188,199,810.44
  5. Step 5: Solve for x
    x = 80,188,199,810.44/410,640.24
  6. Step 6: Final answer
    x = 195,276.04

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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.