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Finding the Fourth Proportional to 382,079.40, 573,378.30 and 248,634.60

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Solution

The fourth proportional to 382,079.40, 573,378.30 and 248,634.60 is: 373,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,079.40 : 573,378.30 = 248,634.60 : x
  2. Step 2: Convert to fraction form
    382,079.40/573,378.30 = 248,634.60/x
  3. Step 3: Cross multiply
    382,079.40x = 573,378.30 × 248,634.60
  4. Step 4: Simplify right side
    382,079.40x = 142,561,684,269.18
  5. Step 5: Solve for x
    x = 142,561,684,269.18/382,079.40
  6. Step 6: Final answer
    x = 373,120.57

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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.