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Finding the Fourth Proportional to 3,185,308.80, 4,770,964.80 and 2,765,404.80

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Solution

The fourth proportional to 3,185,308.80, 4,770,964.80 and 2,765,404.80 is: 4,142,031.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185,308.80 : 4,770,964.80 = 2,765,404.80 : x
  2. Step 2: Convert to fraction form
    3,185,308.80/4,770,964.80 = 2,765,404.80/x
  3. Step 3: Cross multiply
    3,185,308.80x = 4,770,964.80 × 2,765,404.80
  4. Step 4: Simplify right side
    3,185,308.80x = 13,193,648,958,551.04
  5. Step 5: Solve for x
    x = 13,193,648,958,551.04/3,185,308.80
  6. Step 6: Final answer
    x = 4,142,031.37

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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.