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Finding the Fourth Proportional to 1,464.00, 2,020.27 and 874.42

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Solution

The fourth proportional to 1,464.00, 2,020.27 and 874.42 is: 1,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.00 : 2,020.27 = 874.42 : x
  2. Step 2: Convert to fraction form
    1,464.00/2,020.27 = 874.42/x
  3. Step 3: Cross multiply
    1,464.00x = 2,020.27 × 874.42
  4. Step 4: Simplify right side
    1,464.00x = 1,766,562.12
  5. Step 5: Solve for x
    x = 1,766,562.12/1,464.00
  6. Step 6: Final answer
    x = 1,206.67

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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.