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Finding the Fourth Proportional to 451,991.07, 677,352.78 and 325,033.90

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Solution

The fourth proportional to 451,991.07, 677,352.78 and 325,033.90 is: 487,095.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,991.07 : 677,352.78 = 325,033.90 : x
  2. Step 2: Convert to fraction form
    451,991.07/677,352.78 = 325,033.90/x
  3. Step 3: Cross multiply
    451,991.07x = 677,352.78 × 325,033.90
  4. Step 4: Simplify right side
    451,991.07x = 220,162,614,065.86
  5. Step 5: Solve for x
    x = 220,162,614,065.86/451,991.07
  6. Step 6: Final answer
    x = 487,095.05

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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.