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Finding the Fourth Proportional to 3,345,887.78, 5,018,821.74 and 949,734.44

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Solution

The fourth proportional to 3,345,887.78, 5,018,821.74 and 949,734.44 is: 1,424,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345,887.78 : 5,018,821.74 = 949,734.44 : x
  2. Step 2: Convert to fraction form
    3,345,887.78/5,018,821.74 = 949,734.44/x
  3. Step 3: Cross multiply
    3,345,887.78x = 5,018,821.74 × 949,734.44
  4. Step 4: Simplify right side
    3,345,887.78x = 4,766,547,854,698.73
  5. Step 5: Solve for x
    x = 4,766,547,854,698.73/3,345,887.78
  6. Step 6: Final answer
    x = 1,424,598.84

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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.