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Finding the Fourth Proportional to 1,844,786.40, 2,767,715.44 and 765,100.96

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Solution

The fourth proportional to 1,844,786.40, 2,767,715.44 and 765,100.96 is: 1,147,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844,786.40 : 2,767,715.44 = 765,100.96 : x
  2. Step 2: Convert to fraction form
    1,844,786.40/2,767,715.44 = 765,100.96/x
  3. Step 3: Cross multiply
    1,844,786.40x = 2,767,715.44 × 765,100.96
  4. Step 4: Simplify right side
    1,844,786.40x = 2,117,581,740,150.82
  5. Step 5: Solve for x
    x = 2,117,581,740,150.82/1,844,786.40
  6. Step 6: Final answer
    x = 1,147,873.67

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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.