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Finding the Fourth Proportional to 2,578,638.98, 3,867,958.48 and 895,744.10

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Solution

The fourth proportional to 2,578,638.98, 3,867,958.48 and 895,744.10 is: 1,343,616.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,638.98 : 3,867,958.48 = 895,744.10 : x
  2. Step 2: Convert to fraction form
    2,578,638.98/3,867,958.48 = 895,744.10/x
  3. Step 3: Cross multiply
    2,578,638.98x = 3,867,958.48 × 895,744.10
  4. Step 4: Simplify right side
    2,578,638.98x = 3,464,700,987,504.97
  5. Step 5: Solve for x
    x = 3,464,700,987,504.97/2,578,638.98
  6. Step 6: Final answer
    x = 1,343,616.15

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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.