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Finding the Fourth Proportional to 1,673.32, 2,309.22 and 974.44

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Solution

The fourth proportional to 1,673.32, 2,309.22 and 974.44 is: 1,344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.32 : 2,309.22 = 974.44 : x
  2. Step 2: Convert to fraction form
    1,673.32/2,309.22 = 974.44/x
  3. Step 3: Cross multiply
    1,673.32x = 2,309.22 × 974.44
  4. Step 4: Simplify right side
    1,673.32x = 2,250,196.34
  5. Step 5: Solve for x
    x = 2,250,196.34/1,673.32
  6. Step 6: Final answer
    x = 1,344.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.