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Finding the Fourth Proportional to 698,893,169.22, 964,492,760.70 and 385,647,555.42

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Solution

The fourth proportional to 698,893,169.22, 964,492,760.70 and 385,647,555.42 is: 532,204,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,893,169.22 : 964,492,760.70 = 385,647,555.42 : x
  2. Step 2: Convert to fraction form
    698,893,169.22/964,492,760.70 = 385,647,555.42/x
  3. Step 3: Cross multiply
    698,893,169.22x = 964,492,760.70 × 385,647,555.42
  4. Step 4: Simplify right side
    698,893,169.22x = 371,954,275,384,242,112
  5. Step 5: Solve for x
    x = 371,954,275,384,242,112/698,893,169.22
  6. Step 6: Final answer
    x = 532,204,765.71

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1.5x scale

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.