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Finding the Fourth Proportional to 1,729.44, 2,595.56 and 908.21

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Solution

The fourth proportional to 1,729.44, 2,595.56 and 908.21 is: 1,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.44 : 2,595.56 = 908.21 : x
  2. Step 2: Convert to fraction form
    1,729.44/2,595.56 = 908.21/x
  3. Step 3: Cross multiply
    1,729.44x = 2,595.56 × 908.21
  4. Step 4: Simplify right side
    1,729.44x = 2,357,296.03
  5. Step 5: Solve for x
    x = 2,357,296.03/1,729.44
  6. Step 6: Final answer
    x = 1,363.04

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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.