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Finding the Fourth Proportional to 546,786.20, 820,179.30 and 481,832.30

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Solution

The fourth proportional to 546,786.20, 820,179.30 and 481,832.30 is: 722,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,786.20 : 820,179.30 = 481,832.30 : x
  2. Step 2: Convert to fraction form
    546,786.20/820,179.30 = 481,832.30/x
  3. Step 3: Cross multiply
    546,786.20x = 820,179.30 × 481,832.30
  4. Step 4: Simplify right side
    546,786.20x = 395,188,878,531.39
  5. Step 5: Solve for x
    x = 395,188,878,531.39/546,786.20
  6. Step 6: Final answer
    x = 722,748.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.