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Finding the Fourth Proportional to 3,581,714.60, 5,372,571.90 and 3,220,908.20

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Solution

The fourth proportional to 3,581,714.60, 5,372,571.90 and 3,220,908.20 is: 4,831,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581,714.60 : 5,372,571.90 = 3,220,908.20 : x
  2. Step 2: Convert to fraction form
    3,581,714.60/5,372,571.90 = 3,220,908.20/x
  3. Step 3: Cross multiply
    3,581,714.60x = 5,372,571.90 × 3,220,908.20
  4. Step 4: Simplify right side
    3,581,714.60x = 17,304,560,887,799.58
  5. Step 5: Solve for x
    x = 17,304,560,887,799.58/3,581,714.60
  6. Step 6: Final answer
    x = 4,831,362.30

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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.