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Finding the Fourth Proportional to 661,854,000.20, 992,781,000.30 and 225,647,227.40

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Solution

The fourth proportional to 661,854,000.20, 992,781,000.30 and 225,647,227.40 is: 338,470,841.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,854,000.20 : 992,781,000.30 = 225,647,227.40 : x
  2. Step 2: Convert to fraction form
    661,854,000.20/992,781,000.30 = 225,647,227.40/x
  3. Step 3: Cross multiply
    661,854,000.20x = 992,781,000.30 × 225,647,227.40
  4. Step 4: Simplify right side
    661,854,000.20x = 224,018,280,133,093,568
  5. Step 5: Solve for x
    x = 224,018,280,133,093,568/661,854,000.20
  6. Step 6: Final answer
    x = 338,470,841.10

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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.