Home / 412,824.70-619,237.05-132,370.30

Finding the Fourth Proportional to 412,824.70, 619,237.05 and 132,370.30

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Solution

The fourth proportional to 412,824.70, 619,237.05 and 132,370.30 is: 198,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,824.70 : 619,237.05 = 132,370.30 : x
  2. Step 2: Convert to fraction form
    412,824.70/619,237.05 = 132,370.30/x
  3. Step 3: Cross multiply
    412,824.70x = 619,237.05 × 132,370.30
  4. Step 4: Simplify right side
    412,824.70x = 81,968,594,079.62
  5. Step 5: Solve for x
    x = 81,968,594,079.62/412,824.70
  6. Step 6: Final answer
    x = 198,555.45

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1.5x scale

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.