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Finding the Fourth Proportional to 1,363,018.36, 1,880,978.22 and 751,193.44

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Solution

The fourth proportional to 1,363,018.36, 1,880,978.22 and 751,193.44 is: 1,036,654.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363,018.36 : 1,880,978.22 = 751,193.44 : x
  2. Step 2: Convert to fraction form
    1,363,018.36/1,880,978.22 = 751,193.44/x
  3. Step 3: Cross multiply
    1,363,018.36x = 1,880,978.22 × 751,193.44
  4. Step 4: Simplify right side
    1,363,018.36x = 1,412,978,499,646.88
  5. Step 5: Solve for x
    x = 1,412,978,499,646.88/1,363,018.36
  6. Step 6: Final answer
    x = 1,036,654.05

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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.