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Finding the Fourth Proportional to 322,963.81, 487,479.26 and 322,963.81

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Solution

The fourth proportional to 322,963.81, 487,479.26 and 322,963.81 is: 487,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,963.81 : 487,479.26 = 322,963.81 : x
  2. Step 2: Convert to fraction form
    322,963.81/487,479.26 = 322,963.81/x
  3. Step 3: Cross multiply
    322,963.81x = 487,479.26 × 322,963.81
  4. Step 4: Simplify right side
    322,963.81x = 157,438,158,694.29
  5. Step 5: Solve for x
    x = 157,438,158,694.29/322,963.81
  6. Step 6: Final answer
    x = 487,479.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.