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Finding the Fourth Proportional to 546,912.20, 820,368.30 and 481,958.30

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Solution

The fourth proportional to 546,912.20, 820,368.30 and 481,958.30 is: 722,937.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,912.20 : 820,368.30 = 481,958.30 : x
  2. Step 2: Convert to fraction form
    546,912.20/820,368.30 = 481,958.30/x
  3. Step 3: Cross multiply
    546,912.20x = 820,368.30 × 481,958.30
  4. Step 4: Simplify right side
    546,912.20x = 395,383,311,241.89
  5. Step 5: Solve for x
    x = 395,383,311,241.89/546,912.20
  6. Step 6: Final answer
    x = 722,937.45

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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.