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Finding the Fourth Proportional to 1,798,563.91, 2,481,944.16 and 982,795.60

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Solution

The fourth proportional to 1,798,563.91, 2,481,944.16 and 982,795.60 is: 1,356,217.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798,563.91 : 2,481,944.16 = 982,795.60 : x
  2. Step 2: Convert to fraction form
    1,798,563.91/2,481,944.16 = 982,795.60/x
  3. Step 3: Cross multiply
    1,798,563.91x = 2,481,944.16 × 982,795.60
  4. Step 4: Simplify right side
    1,798,563.91x = 2,439,243,799,893.70
  5. Step 5: Solve for x
    x = 2,439,243,799,893.70/1,798,563.91
  6. Step 6: Final answer
    x = 1,356,217.47

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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.