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Finding the Fourth Proportional to 591,939,584.80, 886,633,918.80 and 489,902,912.80

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Solution

The fourth proportional to 591,939,584.80, 886,633,918.80 and 489,902,912.80 is: 733,798,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,939,584.80 : 886,633,918.80 = 489,902,912.80 : x
  2. Step 2: Convert to fraction form
    591,939,584.80/886,633,918.80 = 489,902,912.80/x
  3. Step 3: Cross multiply
    591,939,584.80x = 886,633,918.80 × 489,902,912.80
  4. Step 4: Simplify right side
    591,939,584.80x = 434,364,539,407,398,656
  5. Step 5: Solve for x
    x = 434,364,539,407,398,656/591,939,584.80
  6. Step 6: Final answer
    x = 733,798,770.28

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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.