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Finding the Fourth Proportional to 1,394.51, 1,923.89 and 804.83

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Solution

The fourth proportional to 1,394.51, 1,923.89 and 804.83 is: 1,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.51 : 1,923.89 = 804.83 : x
  2. Step 2: Convert to fraction form
    1,394.51/1,923.89 = 804.83/x
  3. Step 3: Cross multiply
    1,394.51x = 1,923.89 × 804.83
  4. Step 4: Simplify right side
    1,394.51x = 1,548,390.75
  5. Step 5: Solve for x
    x = 1,548,390.75/1,394.51
  6. Step 6: Final answer
    x = 1,110.35

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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.