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Finding the Fourth Proportional to 561,960.36, 842,939.58 and 262,340.52

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Solution

The fourth proportional to 561,960.36, 842,939.58 and 262,340.52 is: 393,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,960.36 : 842,939.58 = 262,340.52 : x
  2. Step 2: Convert to fraction form
    561,960.36/842,939.58 = 262,340.52/x
  3. Step 3: Cross multiply
    561,960.36x = 842,939.58 × 262,340.52
  4. Step 4: Simplify right side
    561,960.36x = 221,137,207,745.78
  5. Step 5: Solve for x
    x = 221,137,207,745.78/561,960.36
  6. Step 6: Final answer
    x = 393,510.33

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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.