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Finding the Fourth Proportional to 6,145,991.64, 8,481,938.13 and 3,393,209.34

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Solution

The fourth proportional to 6,145,991.64, 8,481,938.13 and 3,393,209.34 is: 4,682,888.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145,991.64 : 8,481,938.13 = 3,393,209.34 : x
  2. Step 2: Convert to fraction form
    6,145,991.64/8,481,938.13 = 3,393,209.34/x
  3. Step 3: Cross multiply
    6,145,991.64x = 8,481,938.13 × 3,393,209.34
  4. Step 4: Simplify right side
    6,145,991.64x = 28,780,991,684,018.14
  5. Step 5: Solve for x
    x = 28,780,991,684,018.14/6,145,991.64
  6. Step 6: Final answer
    x = 4,682,888.19

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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.