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Finding the Fourth Proportional to 382,144.74, 573,218.49 and 115,907.58

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Solution

The fourth proportional to 382,144.74, 573,218.49 and 115,907.58 is: 173,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,144.74 : 573,218.49 = 115,907.58 : x
  2. Step 2: Convert to fraction form
    382,144.74/573,218.49 = 115,907.58/x
  3. Step 3: Cross multiply
    382,144.74x = 573,218.49 × 115,907.58
  4. Step 4: Simplify right side
    382,144.74x = 66,440,367,987.15
  5. Step 5: Solve for x
    x = 66,440,367,987.15/382,144.74
  6. Step 6: Final answer
    x = 173,861.79

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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.