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Finding the Fourth Proportional to 2,694,927.90, 3,718,647.56 and 1,607,327.12

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Solution

The fourth proportional to 2,694,927.90, 3,718,647.56 and 1,607,327.12 is: 2,217,900.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694,927.90 : 3,718,647.56 = 1,607,327.12 : x
  2. Step 2: Convert to fraction form
    2,694,927.90/3,718,647.56 = 1,607,327.12/x
  3. Step 3: Cross multiply
    2,694,927.90x = 3,718,647.56 × 1,607,327.12
  4. Step 4: Simplify right side
    2,694,927.90x = 5,977,083,072,909.83
  5. Step 5: Solve for x
    x = 5,977,083,072,909.83/2,694,927.90
  6. Step 6: Final answer
    x = 2,217,900.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.