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Finding the Fourth Proportional to 447,136.56, 617,048.01 and 256,150.71

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Solution

The fourth proportional to 447,136.56, 617,048.01 and 256,150.71 is: 353,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,136.56 : 617,048.01 = 256,150.71 : x
  2. Step 2: Convert to fraction form
    447,136.56/617,048.01 = 256,150.71/x
  3. Step 3: Cross multiply
    447,136.56x = 617,048.01 × 256,150.71
  4. Step 4: Simplify right side
    447,136.56x = 158,057,285,865.59
  5. Step 5: Solve for x
    x = 158,057,285,865.59/447,136.56
  6. Step 6: Final answer
    x = 353,487.73

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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.