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Finding the Fourth Proportional to 265.44, 398.16 and 246

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Solution

The fourth proportional to 265.44, 398.16 and 246 is: 369

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.44 : 398.16 = 246 : x
  2. Step 2: Convert to fraction form
    265.44/398.16 = 246/x
  3. Step 3: Cross multiply
    265.44x = 398.16 × 246
  4. Step 4: Simplify right side
    265.44x = 97,947.36
  5. Step 5: Solve for x
    x = 97,947.36/265.44
  6. Step 6: Final answer
    x = 369

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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.