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Finding the Fourth Proportional to 944, 1,416.64 and 336

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Solution

The fourth proportional to 944, 1,416.64 and 336 is: 504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    944 : 1,416.64 = 336 : x
  2. Step 2: Convert to fraction form
    944/1,416.64 = 336/x
  3. Step 3: Cross multiply
    944x = 1,416.64 × 336
  4. Step 4: Simplify right side
    944x = 475,991.04
  5. Step 5: Solve for x
    x = 475,991.04/944
  6. Step 6: Final answer
    x = 504.23

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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.