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Finding the Fourth Proportional to 1,839,723.92, 2,756,302.68 and 997,738.64

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Solution

The fourth proportional to 1,839,723.92, 2,756,302.68 and 997,738.64 is: 1,494,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839,723.92 : 2,756,302.68 = 997,738.64 : x
  2. Step 2: Convert to fraction form
    1,839,723.92/2,756,302.68 = 997,738.64/x
  3. Step 3: Cross multiply
    1,839,723.92x = 2,756,302.68 × 997,738.64
  4. Step 4: Simplify right side
    1,839,723.92x = 2,750,069,687,371.56
  5. Step 5: Solve for x
    x = 2,750,069,687,371.56/1,839,723.92
  6. Step 6: Final answer
    x = 1,494,827.38

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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.