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Finding the Fourth Proportional to 1,996.98, 2,994.54 and 610.08

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Solution

The fourth proportional to 1,996.98, 2,994.54 and 610.08 is: 914.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.98 : 2,994.54 = 610.08 : x
  2. Step 2: Convert to fraction form
    1,996.98/2,994.54 = 610.08/x
  3. Step 3: Cross multiply
    1,996.98x = 2,994.54 × 610.08
  4. Step 4: Simplify right side
    1,996.98x = 1,826,908.96
  5. Step 5: Solve for x
    x = 1,826,908.96/1,996.98
  6. Step 6: Final answer
    x = 914.84

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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.