Home / 263,680.68-395,192.04-128,633.44

Finding the Fourth Proportional to 263,680.68, 395,192.04 and 128,633.44

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Solution

The fourth proportional to 263,680.68, 395,192.04 and 128,633.44 is: 192,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,680.68 : 395,192.04 = 128,633.44 : x
  2. Step 2: Convert to fraction form
    263,680.68/395,192.04 = 128,633.44/x
  3. Step 3: Cross multiply
    263,680.68x = 395,192.04 × 128,633.44
  4. Step 4: Simplify right side
    263,680.68x = 50,834,911,565.82
  5. Step 5: Solve for x
    x = 50,834,911,565.82/263,680.68
  6. Step 6: Final answer
    x = 192,789.67

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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.