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Finding the Third Proportional to 1,999,288 and 4,353,532

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Solution

The third proportional to 1,999,288 and 4,353,532 is: 9,479,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,288 : 4,353,532 = 4,353,532 : x
  2. Step 2: Convert to fraction form
    1,999,288/4,353,532 = 4,353,532/x
  3. Step 3: Cross multiply
    1,999,288x = 4,353,532 × 4,353,532
  4. Step 4: Simplify right side
    1,999,288x = 18,953,240,875,024
  5. Step 5: Solve for x
    x = 18,953,240,875,024/1,999,288
  6. Step 6: Final answer
    x = 9,479,995.32

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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.