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Finding the Third Proportional to 855,661.50 and 1,315,327.50

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Solution

The third proportional to 855,661.50 and 1,315,327.50 is: 2,021,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,661.50 : 1,315,327.50 = 1,315,327.50 : x
  2. Step 2: Convert to fraction form
    855,661.50/1,315,327.50 = 1,315,327.50/x
  3. Step 3: Cross multiply
    855,661.50x = 1,315,327.50 × 1,315,327.50
  4. Step 4: Simplify right side
    855,661.50x = 1,730,086,432,256.25
  5. Step 5: Solve for x
    x = 1,730,086,432,256.25/855,661.50
  6. Step 6: Final answer
    x = 2,021,928.57

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.