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Finding the Fourth Proportional to 1,716.48, 2,574.49 and 605.64

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Solution

The fourth proportional to 1,716.48, 2,574.49 and 605.64 is: 908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.48 : 2,574.49 = 605.64 : x
  2. Step 2: Convert to fraction form
    1,716.48/2,574.49 = 605.64/x
  3. Step 3: Cross multiply
    1,716.48x = 2,574.49 × 605.64
  4. Step 4: Simplify right side
    1,716.48x = 1,559,214.12
  5. Step 5: Solve for x
    x = 1,559,214.12/1,716.48
  6. Step 6: Final answer
    x = 908.38

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Why These Related Problems?

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