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Finding the Fourth Proportional to 447,786.68, 617,783.33 and 254,082.21

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Solution

The fourth proportional to 447,786.68, 617,783.33 and 254,082.21 is: 350,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,786.68 : 617,783.33 = 254,082.21 : x
  2. Step 2: Convert to fraction form
    447,786.68/617,783.33 = 254,082.21/x
  3. Step 3: Cross multiply
    447,786.68x = 617,783.33 × 254,082.21
  4. Step 4: Simplify right side
    447,786.68x = 156,967,752,517.15
  5. Step 5: Solve for x
    x = 156,967,752,517.15/447,786.68
  6. Step 6: Final answer
    x = 350,541.37

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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.