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Finding the Fourth Proportional to 505,198.11, 697,162.86 and 275,759.94

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Solution

The fourth proportional to 505,198.11, 697,162.86 and 275,759.94 is: 380,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,198.11 : 697,162.86 = 275,759.94 : x
  2. Step 2: Convert to fraction form
    505,198.11/697,162.86 = 275,759.94/x
  3. Step 3: Cross multiply
    505,198.11x = 697,162.86 × 275,759.94
  4. Step 4: Simplify right side
    505,198.11x = 192,249,588,443.83
  5. Step 5: Solve for x
    x = 192,249,588,443.83/505,198.11
  6. Step 6: Final answer
    x = 380,542.97

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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.