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Finding the Fourth Proportional to 326,072.60, 489,108.90 and 326,072.60

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Solution

The fourth proportional to 326,072.60, 489,108.90 and 326,072.60 is: 489,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,072.60 : 489,108.90 = 326,072.60 : x
  2. Step 2: Convert to fraction form
    326,072.60/489,108.90 = 326,072.60/x
  3. Step 3: Cross multiply
    326,072.60x = 489,108.90 × 326,072.60
  4. Step 4: Simplify right side
    326,072.60x = 159,485,010,706.14
  5. Step 5: Solve for x
    x = 159,485,010,706.14/326,072.60
  6. Step 6: Final answer
    x = 489,108.90

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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.