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Finding the Fourth Proportional to 2,384.90, 3,290.54 and 1,441.25

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Solution

The fourth proportional to 2,384.90, 3,290.54 and 1,441.25 is: 1,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.90 : 3,290.54 = 1,441.25 : x
  2. Step 2: Convert to fraction form
    2,384.90/3,290.54 = 1,441.25/x
  3. Step 3: Cross multiply
    2,384.90x = 3,290.54 × 1,441.25
  4. Step 4: Simplify right side
    2,384.90x = 4,742,467.12
  5. Step 5: Solve for x
    x = 4,742,467.12/2,384.90
  6. Step 6: Final answer
    x = 1,988.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.