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Finding the Fourth Proportional to 546,812.70, 820,219.05 and 481,858.80

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Solution

The fourth proportional to 546,812.70, 820,219.05 and 481,858.80 is: 722,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,812.70 : 820,219.05 = 481,858.80 : x
  2. Step 2: Convert to fraction form
    546,812.70/820,219.05 = 481,858.80/x
  3. Step 3: Cross multiply
    546,812.70x = 820,219.05 × 481,858.80
  4. Step 4: Simplify right side
    546,812.70x = 395,229,767,170.14
  5. Step 5: Solve for x
    x = 395,229,767,170.14/546,812.70
  6. Step 6: Final answer
    x = 722,788.20

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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.