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Finding the Third Proportional to 1,239,915 and 1,896,543

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Solution

The third proportional to 1,239,915 and 1,896,543 is: 2,900,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,915 : 1,896,543 = 1,896,543 : x
  2. Step 2: Convert to fraction form
    1,239,915/1,896,543 = 1,896,543/x
  3. Step 3: Cross multiply
    1,239,915x = 1,896,543 × 1,896,543
  4. Step 4: Simplify right side
    1,239,915x = 3,596,875,350,849
  5. Step 5: Solve for x
    x = 3,596,875,350,849/1,239,915
  6. Step 6: Final answer
    x = 2,900,904.78

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.