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Finding the Fourth Proportional to 447,608.44, 617,505.42 and 256,578.04

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Solution

The fourth proportional to 447,608.44, 617,505.42 and 256,578.04 is: 353,966.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,608.44 : 617,505.42 = 256,578.04 : x
  2. Step 2: Convert to fraction form
    447,608.44/617,505.42 = 256,578.04/x
  3. Step 3: Cross multiply
    447,608.44x = 617,505.42 × 256,578.04
  4. Step 4: Simplify right side
    447,608.44x = 158,438,330,352.98
  5. Step 5: Solve for x
    x = 158,438,330,352.98/447,608.44
  6. Step 6: Final answer
    x = 353,966.36

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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.