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Finding the Fourth Proportional to 1,017, 1,403.55 and 574.92

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Solution

The fourth proportional to 1,017, 1,403.55 and 574.92 is: 793.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017 : 1,403.55 = 574.92 : x
  2. Step 2: Convert to fraction form
    1,017/1,403.55 = 574.92/x
  3. Step 3: Cross multiply
    1,017x = 1,403.55 × 574.92
  4. Step 4: Simplify right side
    1,017x = 806,928.97
  5. Step 5: Solve for x
    x = 806,928.97/1,017
  6. Step 6: Final answer
    x = 793.44

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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.