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Finding the Third Proportional to 319,743 and 706,180.50

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Solution

The third proportional to 319,743 and 706,180.50 is: 1,559,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,743 : 706,180.50 = 706,180.50 : x
  2. Step 2: Convert to fraction form
    319,743/706,180.50 = 706,180.50/x
  3. Step 3: Cross multiply
    319,743x = 706,180.50 × 706,180.50
  4. Step 4: Simplify right side
    319,743x = 498,690,898,580.25
  5. Step 5: Solve for x
    x = 498,690,898,580.25/319,743
  6. Step 6: Final answer
    x = 1,559,661.66

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.