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Finding the Fourth Proportional to 598,321,602.80, 897,482,404.20 and 394,080,297.20

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Solution

The fourth proportional to 598,321,602.80, 897,482,404.20 and 394,080,297.20 is: 591,120,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,321,602.80 : 897,482,404.20 = 394,080,297.20 : x
  2. Step 2: Convert to fraction form
    598,321,602.80/897,482,404.20 = 394,080,297.20/x
  3. Step 3: Cross multiply
    598,321,602.80x = 897,482,404.20 × 394,080,297.20
  4. Step 4: Simplify right side
    598,321,602.80x = 353,680,132,578,906,560
  5. Step 5: Solve for x
    x = 353,680,132,578,906,560/598,321,602.80
  6. Step 6: Final answer
    x = 591,120,445.80

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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.