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Finding the Fourth Proportional to 1,120,324,961.20, 1,570,750,770.80 and 1,120,324,961.20

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Solution

The fourth proportional to 1,120,324,961.20, 1,570,750,770.80 and 1,120,324,961.20 is: 1,570,750,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,324,961.20 : 1,570,750,770.80 = 1,120,324,961.20 : x
  2. Step 2: Convert to fraction form
    1,120,324,961.20/1,570,750,770.80 = 1,120,324,961.20/x
  3. Step 3: Cross multiply
    1,120,324,961.20x = 1,570,750,770.80 × 1,120,324,961.20
  4. Step 4: Simplify right side
    1,120,324,961.20x = 1,759,751,296,351,380,224
  5. Step 5: Solve for x
    x = 1,759,751,296,351,380,224/1,120,324,961.20
  6. Step 6: Final answer
    x = 1,570,750,770.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.