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Finding the Fourth Proportional to 3,898,642.07, 5,846,719.39 and 1,339,239.85

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Solution

The fourth proportional to 3,898,642.07, 5,846,719.39 and 1,339,239.85 is: 2,008,432.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898,642.07 : 5,846,719.39 = 1,339,239.85 : x
  2. Step 2: Convert to fraction form
    3,898,642.07/5,846,719.39 = 1,339,239.85/x
  3. Step 3: Cross multiply
    3,898,642.07x = 5,846,719.39 × 1,339,239.85
  4. Step 4: Simplify right side
    3,898,642.07x = 7,830,159,589,567.14
  5. Step 5: Solve for x
    x = 7,830,159,589,567.14/3,898,642.07
  6. Step 6: Final answer
    x = 2,008,432.54

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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.