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Finding the Fourth Proportional to 3,313,266.48, 4,969,906.74 and 917,118

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Solution

The fourth proportional to 3,313,266.48, 4,969,906.74 and 917,118 is: 1,375,678.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313,266.48 : 4,969,906.74 = 917,118 : x
  2. Step 2: Convert to fraction form
    3,313,266.48/4,969,906.74 = 917,118/x
  3. Step 3: Cross multiply
    3,313,266.48x = 4,969,906.74 × 917,118
  4. Step 4: Simplify right side
    3,313,266.48x = 4,557,990,929,575.32
  5. Step 5: Solve for x
    x = 4,557,990,929,575.32/3,313,266.48
  6. Step 6: Final answer
    x = 1,375,678.94

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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.