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Finding the Fourth Proportional to 682,793.80, 957,311 and 682,793.80

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Solution

The fourth proportional to 682,793.80, 957,311 and 682,793.80 is: 957,311

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,793.80 : 957,311 = 682,793.80 : x
  2. Step 2: Convert to fraction form
    682,793.80/957,311 = 682,793.80/x
  3. Step 3: Cross multiply
    682,793.80x = 957,311 × 682,793.80
  4. Step 4: Simplify right side
    682,793.80x = 653,646,015,471.80
  5. Step 5: Solve for x
    x = 653,646,015,471.80/682,793.80
  6. Step 6: Final answer
    x = 957,311

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.