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Finding the Fourth Proportional to 3,959,805.06, 5,939,729.46 and 1,435,394.70

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Solution

The fourth proportional to 3,959,805.06, 5,939,729.46 and 1,435,394.70 is: 2,153,099.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959,805.06 : 5,939,729.46 = 1,435,394.70 : x
  2. Step 2: Convert to fraction form
    3,959,805.06/5,939,729.46 = 1,435,394.70/x
  3. Step 3: Cross multiply
    3,959,805.06x = 5,939,729.46 × 1,435,394.70
  4. Step 4: Simplify right side
    3,959,805.06x = 8,525,856,186,317.86
  5. Step 5: Solve for x
    x = 8,525,856,186,317.86/3,959,805.06
  6. Step 6: Final answer
    x = 2,153,099.98

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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.