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Finding the Fourth Proportional to 561,804.37, 842,790.59 and 206,791.36

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Solution

The fourth proportional to 561,804.37, 842,790.59 and 206,791.36 is: 310,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,804.37 : 842,790.59 = 206,791.36 : x
  2. Step 2: Convert to fraction form
    561,804.37/842,790.59 = 206,791.36/x
  3. Step 3: Cross multiply
    561,804.37x = 842,790.59 × 206,791.36
  4. Step 4: Simplify right side
    561,804.37x = 174,281,812,301.30
  5. Step 5: Solve for x
    x = 174,281,812,301.30/561,804.37
  6. Step 6: Final answer
    x = 310,217.97

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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.