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Finding the Fourth Proportional to 3,895,765.89, 5,843,648.85 and 1,055,878.05

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Solution

The fourth proportional to 3,895,765.89, 5,843,648.85 and 1,055,878.05 is: 1,583,817.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895,765.89 : 5,843,648.85 = 1,055,878.05 : x
  2. Step 2: Convert to fraction form
    3,895,765.89/5,843,648.85 = 1,055,878.05/x
  3. Step 3: Cross multiply
    3,895,765.89x = 5,843,648.85 × 1,055,878.05
  4. Step 4: Simplify right side
    3,895,765.89x = 6,170,180,552,622.74
  5. Step 5: Solve for x
    x = 6,170,180,552,622.74/3,895,765.89
  6. Step 6: Final answer
    x = 1,583,817.08

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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.