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Finding the Fourth Proportional to 322,979.16, 487,502.46 and 322,979.16

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Solution

The fourth proportional to 322,979.16, 487,502.46 and 322,979.16 is: 487,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,979.16 : 487,502.46 = 322,979.16 : x
  2. Step 2: Convert to fraction form
    322,979.16/487,502.46 = 322,979.16/x
  3. Step 3: Cross multiply
    322,979.16x = 487,502.46 × 322,979.16
  4. Step 4: Simplify right side
    322,979.16x = 157,453,135,028.73
  5. Step 5: Solve for x
    x = 157,453,135,028.73/322,979.16
  6. Step 6: Final answer
    x = 487,502.46

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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.