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Finding the Fourth Proportional to 1,754,633.30, 2,629,981.65 and 996,837.80

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Solution

The fourth proportional to 1,754,633.30, 2,629,981.65 and 996,837.80 is: 1,494,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754,633.30 : 2,629,981.65 = 996,837.80 : x
  2. Step 2: Convert to fraction form
    1,754,633.30/2,629,981.65 = 996,837.80/x
  3. Step 3: Cross multiply
    1,754,633.30x = 2,629,981.65 × 996,837.80
  4. Step 4: Simplify right side
    1,754,633.30x = 2,621,665,122,026.37
  5. Step 5: Solve for x
    x = 2,621,665,122,026.37/1,754,633.30
  6. Step 6: Final answer
    x = 1,494,138.47

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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.