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Finding the Third Proportional to 223,319 and 486,724

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Solution

The third proportional to 223,319 and 486,724 is: 1,060,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,319 : 486,724 = 486,724 : x
  2. Step 2: Convert to fraction form
    223,319/486,724 = 486,724/x
  3. Step 3: Cross multiply
    223,319x = 486,724 × 486,724
  4. Step 4: Simplify right side
    223,319x = 236,900,252,176
  5. Step 5: Solve for x
    x = 236,900,252,176/223,319
  6. Step 6: Final answer
    x = 1,060,815.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.