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Finding the Fourth Proportional to 792,788,680.80, 1,189,183,021.20 and 792,788,680.80

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Solution

The fourth proportional to 792,788,680.80, 1,189,183,021.20 and 792,788,680.80 is: 1,189,183,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,788,680.80 : 1,189,183,021.20 = 792,788,680.80 : x
  2. Step 2: Convert to fraction form
    792,788,680.80/1,189,183,021.20 = 792,788,680.80/x
  3. Step 3: Cross multiply
    792,788,680.80x = 1,189,183,021.20 × 792,788,680.80
  4. Step 4: Simplify right side
    792,788,680.80x = 942,770,838,606,906,368
  5. Step 5: Solve for x
    x = 942,770,838,606,906,368/792,788,680.80
  6. Step 6: Final answer
    x = 1,189,183,021.20

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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.