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Finding the Fourth Proportional to 4,798,719.98, 7,198,093.65 and 1,387,284.29

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Solution

The fourth proportional to 4,798,719.98, 7,198,093.65 and 1,387,284.29 is: 2,080,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,798,719.98 : 7,198,093.65 = 1,387,284.29 : x
  2. Step 2: Convert to fraction form
    4,798,719.98/7,198,093.65 = 1,387,284.29/x
  3. Step 3: Cross multiply
    4,798,719.98x = 7,198,093.65 × 1,387,284.29
  4. Step 4: Simplify right side
    4,798,719.98x = 9,985,802,202,603.29
  5. Step 5: Solve for x
    x = 9,985,802,202,603.29/4,798,719.98
  6. Step 6: Final answer
    x = 2,080,930.38

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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.