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Finding the Fourth Proportional to 1,797,977.42, 2,481,109.26 and 982,018.64

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Solution

The fourth proportional to 1,797,977.42, 2,481,109.26 and 982,018.64 is: 1,355,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797,977.42 : 2,481,109.26 = 982,018.64 : x
  2. Step 2: Convert to fraction form
    1,797,977.42/2,481,109.26 = 982,018.64/x
  3. Step 3: Cross multiply
    1,797,977.42x = 2,481,109.26 × 982,018.64
  4. Step 4: Simplify right side
    1,797,977.42x = 2,436,495,541,196.61
  5. Step 5: Solve for x
    x = 2,436,495,541,196.61/1,797,977.42
  6. Step 6: Final answer
    x = 1,355,131.33

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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.