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Finding the Fourth Proportional to 1,784,962.88, 2,677,969.18 and 719,456.48

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Solution

The fourth proportional to 1,784,962.88, 2,677,969.18 and 719,456.48 is: 1,079,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784,962.88 : 2,677,969.18 = 719,456.48 : x
  2. Step 2: Convert to fraction form
    1,784,962.88/2,677,969.18 = 719,456.48/x
  3. Step 3: Cross multiply
    1,784,962.88x = 2,677,969.18 × 719,456.48
  4. Step 4: Simplify right side
    1,784,962.88x = 1,926,682,279,791.29
  5. Step 5: Solve for x
    x = 1,926,682,279,791.29/1,784,962.88
  6. Step 6: Final answer
    x = 1,079,396.27

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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.