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Finding the Fourth Proportional to 329,616.81, 454,839.71 and 261,797.94

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Solution

The fourth proportional to 329,616.81, 454,839.71 and 261,797.94 is: 361,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,616.81 : 454,839.71 = 261,797.94 : x
  2. Step 2: Convert to fraction form
    329,616.81/454,839.71 = 261,797.94/x
  3. Step 3: Cross multiply
    329,616.81x = 454,839.71 × 261,797.94
  4. Step 4: Simplify right side
    329,616.81x = 119,076,097,799.21
  5. Step 5: Solve for x
    x = 119,076,097,799.21/329,616.81
  6. Step 6: Final answer
    x = 361,256.14

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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.