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Finding the Fourth Proportional to 323,814.30, 485,721.45 and 183,846.30

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Solution

The fourth proportional to 323,814.30, 485,721.45 and 183,846.30 is: 275,769.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,814.30 : 485,721.45 = 183,846.30 : x
  2. Step 2: Convert to fraction form
    323,814.30/485,721.45 = 183,846.30/x
  3. Step 3: Cross multiply
    323,814.30x = 485,721.45 × 183,846.30
  4. Step 4: Simplify right side
    323,814.30x = 89,298,091,413.14
  5. Step 5: Solve for x
    x = 89,298,091,413.14/323,814.30
  6. Step 6: Final answer
    x = 275,769.45

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Similar ratio
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1.5x scale

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.