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Finding the Fourth Proportional to 1,992,538.22, 2,749,688.72 and 1,133,098.26

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Solution

The fourth proportional to 1,992,538.22, 2,749,688.72 and 1,133,098.26 is: 1,563,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,538.22 : 2,749,688.72 = 1,133,098.26 : x
  2. Step 2: Convert to fraction form
    1,992,538.22/2,749,688.72 = 1,133,098.26/x
  3. Step 3: Cross multiply
    1,992,538.22x = 2,749,688.72 × 1,133,098.26
  4. Step 4: Simplify right side
    1,992,538.22x = 3,115,667,504,173.63
  5. Step 5: Solve for x
    x = 3,115,667,504,173.63/1,992,538.22
  6. Step 6: Final answer
    x = 1,563,667.62

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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.