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Finding the Fourth Proportional to 3,264,307.80, 4,890,556.80 and 2,791,915.80

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Solution

The fourth proportional to 3,264,307.80, 4,890,556.80 and 2,791,915.80 is: 4,182,823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264,307.80 : 4,890,556.80 = 2,791,915.80 : x
  2. Step 2: Convert to fraction form
    3,264,307.80/4,890,556.80 = 2,791,915.80/x
  3. Step 3: Cross multiply
    3,264,307.80x = 4,890,556.80 × 2,791,915.80
  4. Step 4: Simplify right side
    3,264,307.80x = 13,654,022,800,717.44
  5. Step 5: Solve for x
    x = 13,654,022,800,717.44/3,264,307.80
  6. Step 6: Final answer
    x = 4,182,823.32

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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.