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Finding the Fourth Proportional to 1,165.26, 1,744.90 and 616.22

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Solution

The fourth proportional to 1,165.26, 1,744.90 and 616.22 is: 922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.26 : 1,744.90 = 616.22 : x
  2. Step 2: Convert to fraction form
    1,165.26/1,744.90 = 616.22/x
  3. Step 3: Cross multiply
    1,165.26x = 1,744.90 × 616.22
  4. Step 4: Simplify right side
    1,165.26x = 1,075,242.28
  5. Step 5: Solve for x
    x = 1,075,242.28/1,165.26
  6. Step 6: Final answer
    x = 922.75

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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.