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Finding the Fourth Proportional to 2,578,647.48, 3,867,971.25 and 895,752.60

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Solution

The fourth proportional to 2,578,647.48, 3,867,971.25 and 895,752.60 is: 1,343,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,647.48 : 3,867,971.25 = 895,752.60 : x
  2. Step 2: Convert to fraction form
    2,578,647.48/3,867,971.25 = 895,752.60/x
  3. Step 3: Cross multiply
    2,578,647.48x = 3,867,971.25 × 895,752.60
  4. Step 4: Simplify right side
    2,578,647.48x = 3,464,745,303,912.75
  5. Step 5: Solve for x
    x = 3,464,745,303,912.75/2,578,647.48
  6. Step 6: Final answer
    x = 1,343,628.91

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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.