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Finding the Fourth Proportional to 3,313,247, 4,969,877.42 and 917,098.55

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Solution

The fourth proportional to 3,313,247, 4,969,877.42 and 917,098.55 is: 1,375,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313,247 : 4,969,877.42 = 917,098.55 : x
  2. Step 2: Convert to fraction form
    3,313,247/4,969,877.42 = 917,098.55/x
  3. Step 3: Cross multiply
    3,313,247x = 4,969,877.42 × 917,098.55
  4. Step 4: Simplify right side
    3,313,247x = 4,557,867,375,559.74
  5. Step 5: Solve for x
    x = 4,557,867,375,559.74/3,313,247
  6. Step 6: Final answer
    x = 1,375,649.74

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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.