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Finding the Third Proportional to 1,238,878.13 and 1,817,376.75

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Solution

The third proportional to 1,238,878.13 and 1,817,376.75 is: 2,666,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,878.13 : 1,817,376.75 = 1,817,376.75 : x
  2. Step 2: Convert to fraction form
    1,238,878.13/1,817,376.75 = 1,817,376.75/x
  3. Step 3: Cross multiply
    1,238,878.13x = 1,817,376.75 × 1,817,376.75
  4. Step 4: Simplify right side
    1,238,878.13x = 3,302,858,251,440.56
  5. Step 5: Solve for x
    x = 3,302,858,251,440.56/1,238,878.13
  6. Step 6: Final answer
    x = 2,666,007.40

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.