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Finding the Fourth Proportional to 2,398.32, 3,594.60 and 858.48

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Solution

The fourth proportional to 2,398.32, 3,594.60 and 858.48 is: 1,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.32 : 3,594.60 = 858.48 : x
  2. Step 2: Convert to fraction form
    2,398.32/3,594.60 = 858.48/x
  3. Step 3: Cross multiply
    2,398.32x = 3,594.60 × 858.48
  4. Step 4: Simplify right side
    2,398.32x = 3,085,892.21
  5. Step 5: Solve for x
    x = 3,085,892.21/2,398.32
  6. Step 6: Final answer
    x = 1,286.69

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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.