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Finding the Fourth Proportional to 561,804.29, 842,790.35 and 206,791.32

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Solution

The fourth proportional to 561,804.29, 842,790.35 and 206,791.32 is: 310,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,804.29 : 842,790.35 = 206,791.32 : x
  2. Step 2: Convert to fraction form
    561,804.29/842,790.35 = 206,791.32/x
  3. Step 3: Cross multiply
    561,804.29x = 842,790.35 × 206,791.32
  4. Step 4: Simplify right side
    561,804.29x = 174,281,728,959.76
  5. Step 5: Solve for x
    x = 174,281,728,959.76/561,804.29
  6. Step 6: Final answer
    x = 310,217.87

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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.