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Finding the Third Proportional to 213,179.50 and 458,617

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Solution

The third proportional to 213,179.50 and 458,617 is: 986,631.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,179.50 : 458,617 = 458,617 : x
  2. Step 2: Convert to fraction form
    213,179.50/458,617 = 458,617/x
  3. Step 3: Cross multiply
    213,179.50x = 458,617 × 458,617
  4. Step 4: Simplify right side
    213,179.50x = 210,329,552,689
  5. Step 5: Solve for x
    x = 210,329,552,689/213,179.50
  6. Step 6: Final answer
    x = 986,631.23

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.