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Finding the Fourth Proportional to 388,361.88, 582,528.24 and 160,651.44

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Solution

The fourth proportional to 388,361.88, 582,528.24 and 160,651.44 is: 240,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,361.88 : 582,528.24 = 160,651.44 : x
  2. Step 2: Convert to fraction form
    388,361.88/582,528.24 = 160,651.44/x
  3. Step 3: Cross multiply
    388,361.88x = 582,528.24 × 160,651.44
  4. Step 4: Simplify right side
    388,361.88x = 93,584,000,596.67
  5. Step 5: Solve for x
    x = 93,584,000,596.67/388,361.88
  6. Step 6: Final answer
    x = 240,971.13

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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.