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Finding the Fourth Proportional to 884,124, 1,220,091.12 and 481,716

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Solution

The fourth proportional to 884,124, 1,220,091.12 and 481,716 is: 664,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,124 : 1,220,091.12 = 481,716 : x
  2. Step 2: Convert to fraction form
    884,124/1,220,091.12 = 481,716/x
  3. Step 3: Cross multiply
    884,124x = 1,220,091.12 × 481,716
  4. Step 4: Simplify right side
    884,124x = 587,737,413,961.92
  5. Step 5: Solve for x
    x = 587,737,413,961.92/884,124
  6. Step 6: Final answer
    x = 664,768.08

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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.