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Finding the Fourth Proportional to 1,464.58, 2,021.85 and 994.96

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Solution

The fourth proportional to 1,464.58, 2,021.85 and 994.96 is: 1,373.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.58 : 2,021.85 = 994.96 : x
  2. Step 2: Convert to fraction form
    1,464.58/2,021.85 = 994.96/x
  3. Step 3: Cross multiply
    1,464.58x = 2,021.85 × 994.96
  4. Step 4: Simplify right side
    1,464.58x = 2,011,654.82
  5. Step 5: Solve for x
    x = 2,011,654.82/1,464.58
  6. Step 6: Final answer
    x = 1,373.54

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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.