Home / 412,824.80-619,237.20-132,370.40

Finding the Fourth Proportional to 412,824.80, 619,237.20 and 132,370.40

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Solution

The fourth proportional to 412,824.80, 619,237.20 and 132,370.40 is: 198,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,824.80 : 619,237.20 = 132,370.40 : x
  2. Step 2: Convert to fraction form
    412,824.80/619,237.20 = 132,370.40/x
  3. Step 3: Cross multiply
    412,824.80x = 619,237.20 × 132,370.40
  4. Step 4: Simplify right side
    412,824.80x = 81,968,675,858.88
  5. Step 5: Solve for x
    x = 81,968,675,858.88/412,824.80
  6. Step 6: Final answer
    x = 198,555.60

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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.