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Finding the Third Proportional to 867,939 and 1,314,148.50

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Solution

The third proportional to 867,939 and 1,314,148.50 is: 1,989,755.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,939 : 1,314,148.50 = 1,314,148.50 : x
  2. Step 2: Convert to fraction form
    867,939/1,314,148.50 = 1,314,148.50/x
  3. Step 3: Cross multiply
    867,939x = 1,314,148.50 × 1,314,148.50
  4. Step 4: Simplify right side
    867,939x = 1,726,986,280,052.25
  5. Step 5: Solve for x
    x = 1,726,986,280,052.25/867,939
  6. Step 6: Final answer
    x = 1,989,755.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.