Home / 395,784.40-593,734.20-129,480.40

Finding the Fourth Proportional to 395,784.40, 593,734.20 and 129,480.40

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Solution

The fourth proportional to 395,784.40, 593,734.20 and 129,480.40 is: 194,239.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,784.40 : 593,734.20 = 129,480.40 : x
  2. Step 2: Convert to fraction form
    395,784.40/593,734.20 = 129,480.40/x
  3. Step 3: Cross multiply
    395,784.40x = 593,734.20 × 129,480.40
  4. Step 4: Simplify right side
    395,784.40x = 76,876,941,709.68
  5. Step 5: Solve for x
    x = 76,876,941,709.68/395,784.40
  6. Step 6: Final answer
    x = 194,239.44

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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.