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Finding the Fourth Proportional to 3,469,455.71, 4,788,349.68 and 1,999,082.64

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Solution

The fourth proportional to 3,469,455.71, 4,788,349.68 and 1,999,082.64 is: 2,759,022.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469,455.71 : 4,788,349.68 = 1,999,082.64 : x
  2. Step 2: Convert to fraction form
    3,469,455.71/4,788,349.68 = 1,999,082.64/x
  3. Step 3: Cross multiply
    3,469,455.71x = 4,788,349.68 × 1,999,082.64
  4. Step 4: Simplify right side
    3,469,455.71x = 9,572,306,719,537.56
  5. Step 5: Solve for x
    x = 9,572,306,719,537.56/3,469,455.71
  6. Step 6: Final answer
    x = 2,759,022.61

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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.