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Finding the Fourth Proportional to 654,231.22, 902,706.52 and 382,246.56

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Solution

The fourth proportional to 654,231.22, 902,706.52 and 382,246.56 is: 527,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,231.22 : 902,706.52 = 382,246.56 : x
  2. Step 2: Convert to fraction form
    654,231.22/902,706.52 = 382,246.56/x
  3. Step 3: Cross multiply
    654,231.22x = 902,706.52 × 382,246.56
  4. Step 4: Simplify right side
    654,231.22x = 345,056,462,915.19
  5. Step 5: Solve for x
    x = 345,056,462,915.19/654,231.22
  6. Step 6: Final answer
    x = 527,422.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.