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Finding the Fourth Proportional to 1,354,474.56, 1,869,103.46 and 773,583.50

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Solution

The fourth proportional to 1,354,474.56, 1,869,103.46 and 773,583.50 is: 1,067,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,474.56 : 1,869,103.46 = 773,583.50 : x
  2. Step 2: Convert to fraction form
    1,354,474.56/1,869,103.46 = 773,583.50/x
  3. Step 3: Cross multiply
    1,354,474.56x = 1,869,103.46 × 773,583.50
  4. Step 4: Simplify right side
    1,354,474.56x = 1,445,907,596,448.91
  5. Step 5: Solve for x
    x = 1,445,907,596,448.91/1,354,474.56
  6. Step 6: Final answer
    x = 1,067,504.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.