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Finding the Third Proportional to 272,320.50 and 436,918.50

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Solution

The third proportional to 272,320.50 and 436,918.50 is: 701,004.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,320.50 : 436,918.50 = 436,918.50 : x
  2. Step 2: Convert to fraction form
    272,320.50/436,918.50 = 436,918.50/x
  3. Step 3: Cross multiply
    272,320.50x = 436,918.50 × 436,918.50
  4. Step 4: Simplify right side
    272,320.50x = 190,897,775,642.25
  5. Step 5: Solve for x
    x = 190,897,775,642.25/272,320.50
  6. Step 6: Final answer
    x = 701,004.06

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.