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Finding the Fourth Proportional to 764,003,431.80, 1,146,005,147.70 and 764,003,431.80

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Solution

The fourth proportional to 764,003,431.80, 1,146,005,147.70 and 764,003,431.80 is: 1,146,005,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,003,431.80 : 1,146,005,147.70 = 764,003,431.80 : x
  2. Step 2: Convert to fraction form
    764,003,431.80/1,146,005,147.70 = 764,003,431.80/x
  3. Step 3: Cross multiply
    764,003,431.80x = 1,146,005,147.70 × 764,003,431.80
  4. Step 4: Simplify right side
    764,003,431.80x = 875,551,865,703,265,920
  5. Step 5: Solve for x
    x = 875,551,865,703,265,920/764,003,431.80
  6. Step 6: Final answer
    x = 1,146,005,147.70

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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.