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Finding the Fourth Proportional to 264,654,479.20, 396,981,718.80 and 252,750,200.80

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Solution

The fourth proportional to 264,654,479.20, 396,981,718.80 and 252,750,200.80 is: 379,125,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,654,479.20 : 396,981,718.80 = 252,750,200.80 : x
  2. Step 2: Convert to fraction form
    264,654,479.20/396,981,718.80 = 252,750,200.80/x
  3. Step 3: Cross multiply
    264,654,479.20x = 396,981,718.80 × 252,750,200.80
  4. Step 4: Simplify right side
    264,654,479.20x = 100,337,209,140,629,136
  5. Step 5: Solve for x
    x = 100,337,209,140,629,136/264,654,479.20
  6. Step 6: Final answer
    x = 379,125,301.20

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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.