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Finding the Fourth Proportional to 1,244,718, 1,717,608.78 and 700,679.88

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Solution

The fourth proportional to 1,244,718, 1,717,608.78 and 700,679.88 is: 966,880.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,718 : 1,717,608.78 = 700,679.88 : x
  2. Step 2: Convert to fraction form
    1,244,718/1,717,608.78 = 700,679.88/x
  3. Step 3: Cross multiply
    1,244,718x = 1,717,608.78 × 700,679.88
  4. Step 4: Simplify right side
    1,244,718x = 1,203,493,913,857.35
  5. Step 5: Solve for x
    x = 1,203,493,913,857.35/1,244,718
  6. Step 6: Final answer
    x = 966,880.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.