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Finding the Fourth Proportional to 325,616.90, 449,365.25 and 189,628.90

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Solution

The fourth proportional to 325,616.90, 449,365.25 and 189,628.90 is: 261,696.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,616.90 : 449,365.25 = 189,628.90 : x
  2. Step 2: Convert to fraction form
    325,616.90/449,365.25 = 189,628.90/x
  3. Step 3: Cross multiply
    325,616.90x = 449,365.25 × 189,628.90
  4. Step 4: Simplify right side
    325,616.90x = 85,212,637,406.38
  5. Step 5: Solve for x
    x = 85,212,637,406.38/325,616.90
  6. Step 6: Final answer
    x = 261,696.00

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1.5x scale

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.