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Finding the Fourth Proportional to 546,766.20, 820,149.30 and 481,812.30

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Solution

The fourth proportional to 546,766.20, 820,149.30 and 481,812.30 is: 722,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,766.20 : 820,149.30 = 481,812.30 : x
  2. Step 2: Convert to fraction form
    546,766.20/820,149.30 = 481,812.30/x
  3. Step 3: Cross multiply
    546,766.20x = 820,149.30 × 481,812.30
  4. Step 4: Simplify right side
    546,766.20x = 395,158,020,576.39
  5. Step 5: Solve for x
    x = 395,158,020,576.39/546,766.20
  6. Step 6: Final answer
    x = 722,718.45

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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.