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Finding the Fourth Proportional to 978,229.15, 1,467,343.73 and 978,229.15

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Solution

The fourth proportional to 978,229.15, 1,467,343.73 and 978,229.15 is: 1,467,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,229.15 : 1,467,343.73 = 978,229.15 : x
  2. Step 2: Convert to fraction form
    978,229.15/1,467,343.73 = 978,229.15/x
  3. Step 3: Cross multiply
    978,229.15x = 1,467,343.73 × 978,229.15
  4. Step 4: Simplify right side
    978,229.15x = 1,435,398,409,755.73
  5. Step 5: Solve for x
    x = 1,435,398,409,755.73/978,229.15
  6. Step 6: Final answer
    x = 1,467,343.73

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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.