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Finding the Fourth Proportional to 1,836,196.40, 2,751,605.40 and 1,646,656.40

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Solution

The fourth proportional to 1,836,196.40, 2,751,605.40 and 1,646,656.40 is: 2,467,572.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836,196.40 : 2,751,605.40 = 1,646,656.40 : x
  2. Step 2: Convert to fraction form
    1,836,196.40/2,751,605.40 = 1,646,656.40/x
  3. Step 3: Cross multiply
    1,836,196.40x = 2,751,605.40 × 1,646,656.40
  4. Step 4: Simplify right side
    1,836,196.40x = 4,530,948,642,184.56
  5. Step 5: Solve for x
    x = 4,530,948,642,184.56/1,836,196.40
  6. Step 6: Final answer
    x = 2,467,572.99

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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.