Home / 505,238.62-697,229.19-278,884.06

Finding the Fourth Proportional to 505,238.62, 697,229.19 and 278,884.06

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Solution

The fourth proportional to 505,238.62, 697,229.19 and 278,884.06 is: 384,859.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,238.62 : 697,229.19 = 278,884.06 : x
  2. Step 2: Convert to fraction form
    505,238.62/697,229.19 = 278,884.06/x
  3. Step 3: Cross multiply
    505,238.62x = 697,229.19 × 278,884.06
  4. Step 4: Simplify right side
    505,238.62x = 194,446,107,257.71
  5. Step 5: Solve for x
    x = 194,446,107,257.71/505,238.62
  6. Step 6: Final answer
    x = 384,859.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.