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Finding the Fourth Proportional to 2,309.96, 3,464.95 and 923.41

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Solution

The fourth proportional to 2,309.96, 3,464.95 and 923.41 is: 1,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.96 : 3,464.95 = 923.41 : x
  2. Step 2: Convert to fraction form
    2,309.96/3,464.95 = 923.41/x
  3. Step 3: Cross multiply
    2,309.96x = 3,464.95 × 923.41
  4. Step 4: Simplify right side
    2,309.96x = 3,199,558.51
  5. Step 5: Solve for x
    x = 3,199,558.51/2,309.96
  6. Step 6: Final answer
    x = 1,385.12

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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.