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Finding the Fourth Proportional to 325,919, 489,095.42 and 133,950.86

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Solution

The fourth proportional to 325,919, 489,095.42 and 133,950.86 is: 201,015.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,919 : 489,095.42 = 133,950.86 : x
  2. Step 2: Convert to fraction form
    325,919/489,095.42 = 133,950.86/x
  3. Step 3: Cross multiply
    325,919x = 489,095.42 × 133,950.86
  4. Step 4: Simplify right side
    325,919x = 65,514,752,131.06
  5. Step 5: Solve for x
    x = 65,514,752,131.06/325,919
  6. Step 6: Final answer
    x = 201,015.44

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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.