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Finding the Third Proportional to 258,313.50 and 556,208.25

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Solution

The third proportional to 258,313.50 and 556,208.25 is: 1,197,644.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,313.50 : 556,208.25 = 556,208.25 : x
  2. Step 2: Convert to fraction form
    258,313.50/556,208.25 = 556,208.25/x
  3. Step 3: Cross multiply
    258,313.50x = 556,208.25 × 556,208.25
  4. Step 4: Simplify right side
    258,313.50x = 309,367,617,368.06
  5. Step 5: Solve for x
    x = 309,367,617,368.06/258,313.50
  6. Step 6: Final answer
    x = 1,197,644.02

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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.