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Finding the Third Proportional to 315,133 and 674,563

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Solution

The third proportional to 315,133 and 674,563 is: 1,443,946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,133 : 674,563 = 674,563 : x
  2. Step 2: Convert to fraction form
    315,133/674,563 = 674,563/x
  3. Step 3: Cross multiply
    315,133x = 674,563 × 674,563
  4. Step 4: Simplify right side
    315,133x = 455,035,240,969
  5. Step 5: Solve for x
    x = 455,035,240,969/315,133
  6. Step 6: Final answer
    x = 1,443,946.65

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.