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Finding the Fourth Proportional to 4,669,906.80, 7,004,860.20 and 1,640,693.10

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Solution

The fourth proportional to 4,669,906.80, 7,004,860.20 and 1,640,693.10 is: 2,461,039.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,669,906.80 : 7,004,860.20 = 1,640,693.10 : x
  2. Step 2: Convert to fraction form
    4,669,906.80/7,004,860.20 = 1,640,693.10/x
  3. Step 3: Cross multiply
    4,669,906.80x = 7,004,860.20 × 1,640,693.10
  4. Step 4: Simplify right side
    4,669,906.80x = 11,492,825,796,604.62
  5. Step 5: Solve for x
    x = 11,492,825,796,604.62/4,669,906.80
  6. Step 6: Final answer
    x = 2,461,039.65

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Similar ratio
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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.