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Finding the Fourth Proportional to 463,908.84, 640,183.34 and 272,934.51

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Solution

The fourth proportional to 463,908.84, 640,183.34 and 272,934.51 is: 376,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,908.84 : 640,183.34 = 272,934.51 : x
  2. Step 2: Convert to fraction form
    463,908.84/640,183.34 = 272,934.51/x
  3. Step 3: Cross multiply
    463,908.84x = 640,183.34 × 272,934.51
  4. Step 4: Simplify right side
    463,908.84x = 174,728,124,848.39
  5. Step 5: Solve for x
    x = 174,728,124,848.39/463,908.84
  6. Step 6: Final answer
    x = 376,643.23

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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.