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Finding the Third Proportional to 915,391.13 and 1,993,518

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Solution

The third proportional to 915,391.13 and 1,993,518 is: 4,341,438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,391.13 : 1,993,518 = 1,993,518 : x
  2. Step 2: Convert to fraction form
    915,391.13/1,993,518 = 1,993,518/x
  3. Step 3: Cross multiply
    915,391.13x = 1,993,518 × 1,993,518
  4. Step 4: Simplify right side
    915,391.13x = 3,974,114,016,324
  5. Step 5: Solve for x
    x = 3,974,114,016,324/915,391.13
  6. Step 6: Final answer
    x = 4,341,438.22

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.