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Finding the Fourth Proportional to 446,615.28, 670,021.36 and 247,226.48

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Solution

The fourth proportional to 446,615.28, 670,021.36 and 247,226.48 is: 370,894.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,615.28 : 670,021.36 = 247,226.48 : x
  2. Step 2: Convert to fraction form
    446,615.28/670,021.36 = 247,226.48/x
  3. Step 3: Cross multiply
    446,615.28x = 670,021.36 × 247,226.48
  4. Step 4: Simplify right side
    446,615.28x = 165,647,022,357.61
  5. Step 5: Solve for x
    x = 165,647,022,357.61/446,615.28
  6. Step 6: Final answer
    x = 370,894.21

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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.