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Finding the Fourth Proportional to 1,336,942.94, 1,844,972.84 and 725,110.25

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Solution

The fourth proportional to 1,336,942.94, 1,844,972.84 and 725,110.25 is: 1,000,647.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,942.94 : 1,844,972.84 = 725,110.25 : x
  2. Step 2: Convert to fraction form
    1,336,942.94/1,844,972.84 = 725,110.25/x
  3. Step 3: Cross multiply
    1,336,942.94x = 1,844,972.84 × 725,110.25
  4. Step 4: Simplify right side
    1,336,942.94x = 1,337,808,709,843.52
  5. Step 5: Solve for x
    x = 1,337,808,709,843.52/1,336,942.94
  6. Step 6: Final answer
    x = 1,000,647.58

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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.