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Finding the Fourth Proportional to 412,517.10, 618,776.15 and 113,000.26

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Solution

The fourth proportional to 412,517.10, 618,776.15 and 113,000.26 is: 169,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,517.10 : 618,776.15 = 113,000.26 : x
  2. Step 2: Convert to fraction form
    412,517.10/618,776.15 = 113,000.26/x
  3. Step 3: Cross multiply
    412,517.10x = 618,776.15 × 113,000.26
  4. Step 4: Simplify right side
    412,517.10x = 69,921,865,831.80
  5. Step 5: Solve for x
    x = 69,921,865,831.80/412,517.10
  6. Step 6: Final answer
    x = 169,500.53

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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.