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Finding the Fourth Proportional to 607,796.53, 911,706.54 and 187,072

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Solution

The fourth proportional to 607,796.53, 911,706.54 and 187,072 is: 280,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,796.53 : 911,706.54 = 187,072 : x
  2. Step 2: Convert to fraction form
    607,796.53/911,706.54 = 187,072/x
  3. Step 3: Cross multiply
    607,796.53x = 911,706.54 × 187,072
  4. Step 4: Simplify right side
    607,796.53x = 170,554,765,850.88
  5. Step 5: Solve for x
    x = 170,554,765,850.88/607,796.53
  6. Step 6: Final answer
    x = 280,611.61

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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.