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Finding the Fourth Proportional to 1,839,391.76, 2,776,365.56 and 1,839,391.76

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Solution

The fourth proportional to 1,839,391.76, 2,776,365.56 and 1,839,391.76 is: 2,776,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839,391.76 : 2,776,365.56 = 1,839,391.76 : x
  2. Step 2: Convert to fraction form
    1,839,391.76/2,776,365.56 = 1,839,391.76/x
  3. Step 3: Cross multiply
    1,839,391.76x = 2,776,365.56 × 1,839,391.76
  4. Step 4: Simplify right side
    1,839,391.76x = 5,106,823,924,614.83
  5. Step 5: Solve for x
    x = 5,106,823,924,614.83/1,839,391.76
  6. Step 6: Final answer
    x = 2,776,365.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.