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Finding the Third Proportional to 921,318 and 1,993,548

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Solution

The third proportional to 921,318 and 1,993,548 is: 4,313,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,318 : 1,993,548 = 1,993,548 : x
  2. Step 2: Convert to fraction form
    921,318/1,993,548 = 1,993,548/x
  3. Step 3: Cross multiply
    921,318x = 1,993,548 × 1,993,548
  4. Step 4: Simplify right side
    921,318x = 3,974,233,628,304
  5. Step 5: Solve for x
    x = 3,974,233,628,304/921,318
  6. Step 6: Final answer
    x = 4,313,639.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.