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Finding the Fourth Proportional to 1,997,626.86, 2,992,952.43 and 1,662,819.84

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Solution

The fourth proportional to 1,997,626.86, 2,992,952.43 and 1,662,819.84 is: 2,491,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,626.86 : 2,992,952.43 = 1,662,819.84 : x
  2. Step 2: Convert to fraction form
    1,997,626.86/2,992,952.43 = 1,662,819.84/x
  3. Step 3: Cross multiply
    1,997,626.86x = 2,992,952.43 × 1,662,819.84
  4. Step 4: Simplify right side
    1,997,626.86x = 4,976,740,680,780.21
  5. Step 5: Solve for x
    x = 4,976,740,680,780.21/1,997,626.86
  6. Step 6: Final answer
    x = 2,491,326.47

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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.