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Finding the Fourth Proportional to 884,121, 1,220,086.98 and 481,713

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Solution

The fourth proportional to 884,121, 1,220,086.98 and 481,713 is: 664,763.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,121 : 1,220,086.98 = 481,713 : x
  2. Step 2: Convert to fraction form
    884,121/1,220,086.98 = 481,713/x
  3. Step 3: Cross multiply
    884,121x = 1,220,086.98 × 481,713
  4. Step 4: Simplify right side
    884,121x = 587,731,759,396.74
  5. Step 5: Solve for x
    x = 587,731,759,396.74/884,121
  6. Step 6: Final answer
    x = 664,763.94

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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.