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Finding the Fourth Proportional to 1,819,712.62, 2,729,918.82 and 697,694.14

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Solution

The fourth proportional to 1,819,712.62, 2,729,918.82 and 697,694.14 is: 1,046,675.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,712.62 : 2,729,918.82 = 697,694.14 : x
  2. Step 2: Convert to fraction form
    1,819,712.62/2,729,918.82 = 697,694.14/x
  3. Step 3: Cross multiply
    1,819,712.62x = 2,729,918.82 × 697,694.14
  4. Step 4: Simplify right side
    1,819,712.62x = 1,904,648,363,389.71
  5. Step 5: Solve for x
    x = 1,904,648,363,389.71/1,819,712.62
  6. Step 6: Final answer
    x = 1,046,675.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.