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Finding the Fourth Proportional to 682,759.80, 1,022,171.40 and 682,759.80

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Solution

The fourth proportional to 682,759.80, 1,022,171.40 and 682,759.80 is: 1,022,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,759.80 : 1,022,171.40 = 682,759.80 : x
  2. Step 2: Convert to fraction form
    682,759.80/1,022,171.40 = 682,759.80/x
  3. Step 3: Cross multiply
    682,759.80x = 1,022,171.40 × 682,759.80
  4. Step 4: Simplify right side
    682,759.80x = 697,897,540,629.72
  5. Step 5: Solve for x
    x = 697,897,540,629.72/682,759.80
  6. Step 6: Final answer
    x = 1,022,171.40

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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.