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Finding the Fourth Proportional to 326,093.40, 489,140.10 and 236,863.80

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Solution

The fourth proportional to 326,093.40, 489,140.10 and 236,863.80 is: 355,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,093.40 : 489,140.10 = 236,863.80 : x
  2. Step 2: Convert to fraction form
    326,093.40/489,140.10 = 236,863.80/x
  3. Step 3: Cross multiply
    326,093.40x = 489,140.10 × 236,863.80
  4. Step 4: Simplify right side
    326,093.40x = 115,859,582,818.38
  5. Step 5: Solve for x
    x = 115,859,582,818.38/326,093.40
  6. Step 6: Final answer
    x = 355,295.70

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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.