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Finding the Fourth Proportional to 700,003.02, 965,954.09 and 394,063.59

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Solution

The fourth proportional to 700,003.02, 965,954.09 and 394,063.59 is: 543,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,003.02 : 965,954.09 = 394,063.59 : x
  2. Step 2: Convert to fraction form
    700,003.02/965,954.09 = 394,063.59/x
  3. Step 3: Cross multiply
    700,003.02x = 965,954.09 × 394,063.59
  4. Step 4: Simplify right side
    700,003.02x = 380,647,336,480.58
  5. Step 5: Solve for x
    x = 380,647,336,480.58/700,003.02
  6. Step 6: Final answer
    x = 543,779.56

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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.