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Finding the Fourth Proportional to 1,723,799.34, 2,378,794.32 and 938,847.42

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Solution

The fourth proportional to 1,723,799.34, 2,378,794.32 and 938,847.42 is: 1,295,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723,799.34 : 2,378,794.32 = 938,847.42 : x
  2. Step 2: Convert to fraction form
    1,723,799.34/2,378,794.32 = 938,847.42/x
  3. Step 3: Cross multiply
    1,723,799.34x = 2,378,794.32 × 938,847.42
  4. Step 4: Simplify right side
    1,723,799.34x = 2,233,324,910,042.65
  5. Step 5: Solve for x
    x = 2,233,324,910,042.65/1,723,799.34
  6. Step 6: Final answer
    x = 1,295,582.88

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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.