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Finding the Third Proportional to 684,974 and 1,486,670

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Solution

The third proportional to 684,974 and 1,486,670 is: 3,226,673.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,974 : 1,486,670 = 1,486,670 : x
  2. Step 2: Convert to fraction form
    684,974/1,486,670 = 1,486,670/x
  3. Step 3: Cross multiply
    684,974x = 1,486,670 × 1,486,670
  4. Step 4: Simplify right side
    684,974x = 2,210,187,688,900
  5. Step 5: Solve for x
    x = 2,210,187,688,900/684,974
  6. Step 6: Final answer
    x = 3,226,673.84

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.