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Finding the Fourth Proportional to 981,188,845.04, 1,354,250,150.52 and 563,731,310.72

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Solution

The fourth proportional to 981,188,845.04, 1,354,250,150.52 and 563,731,310.72 is: 778,069,600.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,188,845.04 : 1,354,250,150.52 = 563,731,310.72 : x
  2. Step 2: Convert to fraction form
    981,188,845.04/1,354,250,150.52 = 563,731,310.72/x
  3. Step 3: Cross multiply
    981,188,845.04x = 1,354,250,150.52 × 563,731,310.72
  4. Step 4: Simplify right side
    981,188,845.04x = 763,433,212,395,396,864
  5. Step 5: Solve for x
    x = 763,433,212,395,396,864/981,188,845.04
  6. Step 6: Final answer
    x = 778,069,600.21

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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.