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Finding the Third Proportional to 886,320 and 1,329,120

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Solution

The third proportional to 886,320 and 1,329,120 is: 1,993,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,320 : 1,329,120 = 1,329,120 : x
  2. Step 2: Convert to fraction form
    886,320/1,329,120 = 1,329,120/x
  3. Step 3: Cross multiply
    886,320x = 1,329,120 × 1,329,120
  4. Step 4: Simplify right side
    886,320x = 1,766,559,974,400
  5. Step 5: Solve for x
    x = 1,766,559,974,400/886,320
  6. Step 6: Final answer
    x = 1,993,140.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.