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Finding the Fourth Proportional to 873,930,607.20, 1,310,895,910.80 and 465,783,919.20

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Solution

The fourth proportional to 873,930,607.20, 1,310,895,910.80 and 465,783,919.20 is: 698,675,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,930,607.20 : 1,310,895,910.80 = 465,783,919.20 : x
  2. Step 2: Convert to fraction form
    873,930,607.20/1,310,895,910.80 = 465,783,919.20/x
  3. Step 3: Cross multiply
    873,930,607.20x = 1,310,895,910.80 × 465,783,919.20
  4. Step 4: Simplify right side
    873,930,607.20x = 610,594,234,995,677,568
  5. Step 5: Solve for x
    x = 610,594,234,995,677,568/873,930,607.20
  6. Step 6: Final answer
    x = 698,675,878.80

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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.