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Finding the Fourth Proportional to 1,655.44, 2,483 and 559.76

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Solution

The fourth proportional to 1,655.44, 2,483 and 559.76 is: 839.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.44 : 2,483 = 559.76 : x
  2. Step 2: Convert to fraction form
    1,655.44/2,483 = 559.76/x
  3. Step 3: Cross multiply
    1,655.44x = 2,483 × 559.76
  4. Step 4: Simplify right side
    1,655.44x = 1,389,884.08
  5. Step 5: Solve for x
    x = 1,389,884.08/1,655.44
  6. Step 6: Final answer
    x = 839.59

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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.