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Finding the Fourth Proportional to 326,028.60, 489,042.90 and 168,564.60

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Solution

The fourth proportional to 326,028.60, 489,042.90 and 168,564.60 is: 252,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,028.60 : 489,042.90 = 168,564.60 : x
  2. Step 2: Convert to fraction form
    326,028.60/489,042.90 = 168,564.60/x
  3. Step 3: Cross multiply
    326,028.60x = 489,042.90 × 168,564.60
  4. Step 4: Simplify right side
    326,028.60x = 82,435,320,821.34
  5. Step 5: Solve for x
    x = 82,435,320,821.34/326,028.60
  6. Step 6: Final answer
    x = 252,846.90

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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.