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Finding the Fourth Proportional to 447,166.63, 617,089.50 and 256,180.78

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Solution

The fourth proportional to 447,166.63, 617,089.50 and 256,180.78 is: 353,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,166.63 : 617,089.50 = 256,180.78 : x
  2. Step 2: Convert to fraction form
    447,166.63/617,089.50 = 256,180.78/x
  3. Step 3: Cross multiply
    447,166.63x = 617,089.50 × 256,180.78
  4. Step 4: Simplify right side
    447,166.63x = 158,086,469,439.81
  5. Step 5: Solve for x
    x = 158,086,469,439.81/447,166.63
  6. Step 6: Final answer
    x = 353,529.22

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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.