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Finding the Fourth Proportional to 982,486,351.40, 1,469,698,448.70 and 885,740,469.80

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Solution

The fourth proportional to 982,486,351.40, 1,469,698,448.70 and 885,740,469.80 is: 1,324,976,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,486,351.40 : 1,469,698,448.70 = 885,740,469.80 : x
  2. Step 2: Convert to fraction form
    982,486,351.40/1,469,698,448.70 = 885,740,469.80/x
  3. Step 3: Cross multiply
    982,486,351.40x = 1,469,698,448.70 × 885,740,469.80
  4. Step 4: Simplify right side
    982,486,351.40x = 1,301,771,394,415,869,184
  5. Step 5: Solve for x
    x = 1,301,771,394,415,869,184/982,486,351.40
  6. Step 6: Final answer
    x = 1,324,976,568.44

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1.5x scale

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.