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Finding the Fourth Proportional to 3,892,964.93, 5,372,445.24 and 2,239,109.39

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Solution

The fourth proportional to 3,892,964.93, 5,372,445.24 and 2,239,109.39 is: 3,090,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892,964.93 : 5,372,445.24 = 2,239,109.39 : x
  2. Step 2: Convert to fraction form
    3,892,964.93/5,372,445.24 = 2,239,109.39/x
  3. Step 3: Cross multiply
    3,892,964.93x = 5,372,445.24 × 2,239,109.39
  4. Step 4: Simplify right side
    3,892,964.93x = 12,029,492,557,282.58
  5. Step 5: Solve for x
    x = 12,029,492,557,282.58/3,892,964.93
  6. Step 6: Final answer
    x = 3,090,059.32

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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.