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Finding the Fourth Proportional to 580,611,704.10, 870,917,556.15 and 217,058,820.90

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Solution

The fourth proportional to 580,611,704.10, 870,917,556.15 and 217,058,820.90 is: 325,588,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,611,704.10 : 870,917,556.15 = 217,058,820.90 : x
  2. Step 2: Convert to fraction form
    580,611,704.10/870,917,556.15 = 217,058,820.90/x
  3. Step 3: Cross multiply
    580,611,704.10x = 870,917,556.15 × 217,058,820.90
  4. Step 4: Simplify right side
    580,611,704.10x = 189,040,337,839,028,544
  5. Step 5: Solve for x
    x = 189,040,337,839,028,544/580,611,704.10
  6. Step 6: Final answer
    x = 325,588,231.35

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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.