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Finding the Fourth Proportional to 447,692.58, 617,778.09 and 256,662.18

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Solution

The fourth proportional to 447,692.58, 617,778.09 and 256,662.18 is: 354,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,692.58 : 617,778.09 = 256,662.18 : x
  2. Step 2: Convert to fraction form
    447,692.58/617,778.09 = 256,662.18/x
  3. Step 3: Cross multiply
    447,692.58x = 617,778.09 × 256,662.18
  4. Step 4: Simplify right side
    447,692.58x = 158,560,271,335.64
  5. Step 5: Solve for x
    x = 158,560,271,335.64/447,692.58
  6. Step 6: Final answer
    x = 354,172.21

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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.