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Finding the Fourth Proportional to 382,481.90, 573,722.85 and 341,147.60

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Solution

The fourth proportional to 382,481.90, 573,722.85 and 341,147.60 is: 511,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,481.90 : 573,722.85 = 341,147.60 : x
  2. Step 2: Convert to fraction form
    382,481.90/573,722.85 = 341,147.60/x
  3. Step 3: Cross multiply
    382,481.90x = 573,722.85 × 341,147.60
  4. Step 4: Simplify right side
    382,481.90x = 195,724,173,342.66
  5. Step 5: Solve for x
    x = 195,724,173,342.66/382,481.90
  6. Step 6: Final answer
    x = 511,721.40

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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.