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Finding the Fourth Proportional to 2,796,720.82, 4,188,352.05 and 1,895,428.01

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Solution

The fourth proportional to 2,796,720.82, 4,188,352.05 and 1,895,428.01 is: 2,838,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796,720.82 : 4,188,352.05 = 1,895,428.01 : x
  2. Step 2: Convert to fraction form
    2,796,720.82/4,188,352.05 = 1,895,428.01/x
  3. Step 3: Cross multiply
    2,796,720.82x = 4,188,352.05 × 1,895,428.01
  4. Step 4: Simplify right side
    2,796,720.82x = 7,938,719,801,781.80
  5. Step 5: Solve for x
    x = 7,938,719,801,781.80/2,796,720.82
  6. Step 6: Final answer
    x = 2,838,581.44

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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.