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Finding the Fourth Proportional to 1,665.02, 2,297.86 and 919.04

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Solution

The fourth proportional to 1,665.02, 2,297.86 and 919.04 is: 1,268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.02 : 2,297.86 = 919.04 : x
  2. Step 2: Convert to fraction form
    1,665.02/2,297.86 = 919.04/x
  3. Step 3: Cross multiply
    1,665.02x = 2,297.86 × 919.04
  4. Step 4: Simplify right side
    1,665.02x = 2,111,825.25
  5. Step 5: Solve for x
    x = 2,111,825.25/1,665.02
  6. Step 6: Final answer
    x = 1,268.35

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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.