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Finding the Fourth Proportional to 422,696.96, 583,381.56 and 261,603.92

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Solution

The fourth proportional to 422,696.96, 583,381.56 and 261,603.92 is: 361,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,696.96 : 583,381.56 = 261,603.92 : x
  2. Step 2: Convert to fraction form
    422,696.96/583,381.56 = 261,603.92/x
  3. Step 3: Cross multiply
    422,696.96x = 583,381.56 × 261,603.92
  4. Step 4: Simplify right side
    422,696.96x = 152,614,902,951.72
  5. Step 5: Solve for x
    x = 152,614,902,951.72/422,696.96
  6. Step 6: Final answer
    x = 361,050.39

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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.