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Finding the Fourth Proportional to 6,998,679.76, 10,498,019.76 and 1,679,895.76

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Solution

The fourth proportional to 6,998,679.76, 10,498,019.76 and 1,679,895.76 is: 2,519,843.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998,679.76 : 10,498,019.76 = 1,679,895.76 : x
  2. Step 2: Convert to fraction form
    6,998,679.76/10,498,019.76 = 1,679,895.76/x
  3. Step 3: Cross multiply
    6,998,679.76x = 10,498,019.76 × 1,679,895.76
  4. Step 4: Simplify right side
    6,998,679.76x = 17,635,578,883,220.22
  5. Step 5: Solve for x
    x = 17,635,578,883,220.22/6,998,679.76
  6. Step 6: Final answer
    x = 2,519,843.67

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Similar ratio
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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.