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Finding the Fourth Proportional to 554,973.34, 765,863.22 and 300,324.54

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Solution

The fourth proportional to 554,973.34, 765,863.22 and 300,324.54 is: 414,447.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,973.34 : 765,863.22 = 300,324.54 : x
  2. Step 2: Convert to fraction form
    554,973.34/765,863.22 = 300,324.54/x
  3. Step 3: Cross multiply
    554,973.34x = 765,863.22 × 300,324.54
  4. Step 4: Simplify right side
    554,973.34x = 230,007,519,249.42
  5. Step 5: Solve for x
    x = 230,007,519,249.42/554,973.34
  6. Step 6: Final answer
    x = 414,447.87

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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.