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Finding the Fourth Proportional to 445,893.98, 668,556.48 and 293,915.60

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Solution

The fourth proportional to 445,893.98, 668,556.48 and 293,915.60 is: 440,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,893.98 : 668,556.48 = 293,915.60 : x
  2. Step 2: Convert to fraction form
    445,893.98/668,556.48 = 293,915.60/x
  3. Step 3: Cross multiply
    445,893.98x = 668,556.48 × 293,915.60
  4. Step 4: Simplify right side
    445,893.98x = 196,499,175,610.31
  5. Step 5: Solve for x
    x = 196,499,175,610.31/445,893.98
  6. Step 6: Final answer
    x = 440,685.87

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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.