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Finding the Fourth Proportional to 3,281,326.07, 4,914,903.20 and 3,201,019.43

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Solution

The fourth proportional to 3,281,326.07, 4,914,903.20 and 3,201,019.43 is: 4,794,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281,326.07 : 4,914,903.20 = 3,201,019.43 : x
  2. Step 2: Convert to fraction form
    3,281,326.07/4,914,903.20 = 3,201,019.43/x
  3. Step 3: Cross multiply
    3,281,326.07x = 4,914,903.20 × 3,201,019.43
  4. Step 4: Simplify right side
    3,281,326.07x = 15,732,700,599,189.56
  5. Step 5: Solve for x
    x = 15,732,700,599,189.56/3,281,326.07
  6. Step 6: Final answer
    x = 4,794,616.65

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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.