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Finding the Fourth Proportional to 3,435,408.78, 4,741,008.75 and 1,907,658.06

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Solution

The fourth proportional to 3,435,408.78, 4,741,008.75 and 1,907,658.06 is: 2,632,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435,408.78 : 4,741,008.75 = 1,907,658.06 : x
  2. Step 2: Convert to fraction form
    3,435,408.78/4,741,008.75 = 1,907,658.06/x
  3. Step 3: Cross multiply
    3,435,408.78x = 4,741,008.75 × 1,907,658.06
  4. Step 4: Simplify right side
    3,435,408.78x = 9,044,223,554,468.03
  5. Step 5: Solve for x
    x = 9,044,223,554,468.03/3,435,408.78
  6. Step 6: Final answer
    x = 2,632,648.44

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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.