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Finding the Fourth Proportional to 798,676,813.60, 1,198,015,220.40 and 798,676,813.60

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Solution

The fourth proportional to 798,676,813.60, 1,198,015,220.40 and 798,676,813.60 is: 1,198,015,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,676,813.60 : 1,198,015,220.40 = 798,676,813.60 : x
  2. Step 2: Convert to fraction form
    798,676,813.60/1,198,015,220.40 = 798,676,813.60/x
  3. Step 3: Cross multiply
    798,676,813.60x = 1,198,015,220.40 × 798,676,813.60
  4. Step 4: Simplify right side
    798,676,813.60x = 956,826,978,873,373,824
  5. Step 5: Solve for x
    x = 956,826,978,873,373,824/798,676,813.60
  6. Step 6: Final answer
    x = 1,198,015,220.40

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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.