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Finding the Fourth Proportional to 2,403.36, 3,605.52 and 864.48

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Solution

The fourth proportional to 2,403.36, 3,605.52 and 864.48 is: 1,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.36 : 3,605.52 = 864.48 : x
  2. Step 2: Convert to fraction form
    2,403.36/3,605.52 = 864.48/x
  3. Step 3: Cross multiply
    2,403.36x = 3,605.52 × 864.48
  4. Step 4: Simplify right side
    2,403.36x = 3,116,899.93
  5. Step 5: Solve for x
    x = 3,116,899.93/2,403.36
  6. Step 6: Final answer
    x = 1,296.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.