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Finding the Fourth Proportional to 324,036.55, 447,149.46 and 178,843.65

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Solution

The fourth proportional to 324,036.55, 447,149.46 and 178,843.65 is: 246,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,036.55 : 447,149.46 = 178,843.65 : x
  2. Step 2: Convert to fraction form
    324,036.55/447,149.46 = 178,843.65/x
  3. Step 3: Cross multiply
    324,036.55x = 447,149.46 × 178,843.65
  4. Step 4: Simplify right side
    324,036.55x = 79,969,841,521.93
  5. Step 5: Solve for x
    x = 79,969,841,521.93/324,036.55
  6. Step 6: Final answer
    x = 246,792.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.