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Finding the Third Proportional to 913,338 and 1,391,539.50

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Solution

The third proportional to 913,338 and 1,391,539.50 is: 2,120,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,338 : 1,391,539.50 = 1,391,539.50 : x
  2. Step 2: Convert to fraction form
    913,338/1,391,539.50 = 1,391,539.50/x
  3. Step 3: Cross multiply
    913,338x = 1,391,539.50 × 1,391,539.50
  4. Step 4: Simplify right side
    913,338x = 1,936,382,180,060.25
  5. Step 5: Solve for x
    x = 1,936,382,180,060.25/913,338
  6. Step 6: Final answer
    x = 2,120,115.64

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.