Home / 268,523.57-402,785.39-127,855.73

Finding the Fourth Proportional to 268,523.57, 402,785.39 and 127,855.73

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Solution

The fourth proportional to 268,523.57, 402,785.39 and 127,855.73 is: 191,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,523.57 : 402,785.39 = 127,855.73 : x
  2. Step 2: Convert to fraction form
    268,523.57/402,785.39 = 127,855.73/x
  3. Step 3: Cross multiply
    268,523.57x = 402,785.39 × 127,855.73
  4. Step 4: Simplify right side
    268,523.57x = 51,498,421,398.39
  5. Step 5: Solve for x
    x = 51,498,421,398.39/268,523.57
  6. Step 6: Final answer
    x = 191,783.61

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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.