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Finding the Fourth Proportional to 3,607,255.50, 4,978,169.07 and 1,997,623.50

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Solution

The fourth proportional to 3,607,255.50, 4,978,169.07 and 1,997,623.50 is: 2,756,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607,255.50 : 4,978,169.07 = 1,997,623.50 : x
  2. Step 2: Convert to fraction form
    3,607,255.50/4,978,169.07 = 1,997,623.50/x
  3. Step 3: Cross multiply
    3,607,255.50x = 4,978,169.07 × 1,997,623.50
  4. Step 4: Simplify right side
    3,607,255.50x = 9,944,507,521,205.15
  5. Step 5: Solve for x
    x = 9,944,507,521,205.15/3,607,255.50
  6. Step 6: Final answer
    x = 2,756,807.09

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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.