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Finding the Fourth Proportional to 463,556.16, 639,661.44 and 272,616.48

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Solution

The fourth proportional to 463,556.16, 639,661.44 and 272,616.48 is: 376,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,556.16 : 639,661.44 = 272,616.48 : x
  2. Step 2: Convert to fraction form
    463,556.16/639,661.44 = 272,616.48/x
  3. Step 3: Cross multiply
    463,556.16x = 639,661.44 × 272,616.48
  4. Step 4: Simplify right side
    463,556.16x = 174,382,250,164.53
  5. Step 5: Solve for x
    x = 174,382,250,164.53/463,556.16
  6. Step 6: Final answer
    x = 376,183.65

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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.