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Finding the Fourth Proportional to 5,297,157.20, 7,945,808.70 and 1,510,640.48

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Solution

The fourth proportional to 5,297,157.20, 7,945,808.70 and 1,510,640.48 is: 2,265,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,297,157.20 : 7,945,808.70 = 1,510,640.48 : x
  2. Step 2: Convert to fraction form
    5,297,157.20/7,945,808.70 = 1,510,640.48/x
  3. Step 3: Cross multiply
    5,297,157.20x = 7,945,808.70 × 1,510,640.48
  4. Step 4: Simplify right side
    5,297,157.20x = 12,003,260,268,556.18
  5. Step 5: Solve for x
    x = 12,003,260,268,556.18/5,297,157.20
  6. Step 6: Final answer
    x = 2,265,981.51

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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.