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Finding the Fourth Proportional to 1,839,926.70, 2,758,905.90 and 773,764.20

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Solution

The fourth proportional to 1,839,926.70, 2,758,905.90 and 773,764.20 is: 1,160,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839,926.70 : 2,758,905.90 = 773,764.20 : x
  2. Step 2: Convert to fraction form
    1,839,926.70/2,758,905.90 = 773,764.20/x
  3. Step 3: Cross multiply
    1,839,926.70x = 2,758,905.90 × 773,764.20
  4. Step 4: Simplify right side
    1,839,926.70x = 2,134,742,616,588.78
  5. Step 5: Solve for x
    x = 2,134,742,616,588.78/1,839,926.70
  6. Step 6: Final answer
    x = 1,160,232.42

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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.