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Finding the Fourth Proportional to 447,219.28, 617,167.24 and 256,228.56

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Solution

The fourth proportional to 447,219.28, 617,167.24 and 256,228.56 is: 353,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,219.28 : 617,167.24 = 256,228.56 : x
  2. Step 2: Convert to fraction form
    447,219.28/617,167.24 = 256,228.56/x
  3. Step 3: Cross multiply
    447,219.28x = 617,167.24 × 256,228.56
  4. Step 4: Simplify right side
    447,219.28x = 158,135,873,184.37
  5. Step 5: Solve for x
    x = 158,135,873,184.37/447,219.28
  6. Step 6: Final answer
    x = 353,598.07

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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.