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Finding the Fourth Proportional to 554,706, 765,493.92 and 300,057.18

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Solution

The fourth proportional to 554,706, 765,493.92 and 300,057.18 is: 414,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,706 : 765,493.92 = 300,057.18 : x
  2. Step 2: Convert to fraction form
    554,706/765,493.92 = 300,057.18/x
  3. Step 3: Cross multiply
    554,706x = 765,493.92 × 300,057.18
  4. Step 4: Simplify right side
    554,706x = 229,691,946,942.35
  5. Step 5: Solve for x
    x = 229,691,946,942.35/554,706
  6. Step 6: Final answer
    x = 414,078.71

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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.