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Finding the Fourth Proportional to 2,351, 3,244.38 and 1,419.32

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Solution

The fourth proportional to 2,351, 3,244.38 and 1,419.32 is: 1,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351 : 3,244.38 = 1,419.32 : x
  2. Step 2: Convert to fraction form
    2,351/3,244.38 = 1,419.32/x
  3. Step 3: Cross multiply
    2,351x = 3,244.38 × 1,419.32
  4. Step 4: Simplify right side
    2,351x = 4,604,813.42
  5. Step 5: Solve for x
    x = 4,604,813.42/2,351
  6. Step 6: Final answer
    x = 1,958.66

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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.