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Finding the Fourth Proportional to 2,417.44, 3,626.10 and 774.10

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Solution

The fourth proportional to 2,417.44, 3,626.10 and 774.10 is: 1,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.44 : 3,626.10 = 774.10 : x
  2. Step 2: Convert to fraction form
    2,417.44/3,626.10 = 774.10/x
  3. Step 3: Cross multiply
    2,417.44x = 3,626.10 × 774.10
  4. Step 4: Simplify right side
    2,417.44x = 2,806,964.01
  5. Step 5: Solve for x
    x = 2,806,964.01/2,417.44
  6. Step 6: Final answer
    x = 1,161.13

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1.5x scale

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.