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Finding the Fourth Proportional to 1,839,664.76, 2,759,607.86 and 774,789.84

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Solution

The fourth proportional to 1,839,664.76, 2,759,607.86 and 774,789.84 is: 1,162,231.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839,664.76 : 2,759,607.86 = 774,789.84 : x
  2. Step 2: Convert to fraction form
    1,839,664.76/2,759,607.86 = 774,789.84/x
  3. Step 3: Cross multiply
    1,839,664.76x = 2,759,607.86 × 774,789.84
  4. Step 4: Simplify right side
    1,839,664.76x = 2,138,116,128,438.19
  5. Step 5: Solve for x
    x = 2,138,116,128,438.19/1,839,664.76
  6. Step 6: Final answer
    x = 1,162,231.39

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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.