Home / 447,739.20-671,608.80-132,195.60

Finding the Fourth Proportional to 447,739.20, 671,608.80 and 132,195.60

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Solution

The fourth proportional to 447,739.20, 671,608.80 and 132,195.60 is: 198,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,739.20 : 671,608.80 = 132,195.60 : x
  2. Step 2: Convert to fraction form
    447,739.20/671,608.80 = 132,195.60/x
  3. Step 3: Cross multiply
    447,739.20x = 671,608.80 × 132,195.60
  4. Step 4: Simplify right side
    447,739.20x = 88,783,728,281.28
  5. Step 5: Solve for x
    x = 88,783,728,281.28/447,739.20
  6. Step 6: Final answer
    x = 198,293.40

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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.