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Finding the Fourth Proportional to 324,445.94, 486,668.90 and 122,080.09

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Solution

The fourth proportional to 324,445.94, 486,668.90 and 122,080.09 is: 183,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,445.94 : 486,668.90 = 122,080.09 : x
  2. Step 2: Convert to fraction form
    324,445.94/486,668.90 = 122,080.09/x
  3. Step 3: Cross multiply
    324,445.94x = 486,668.90 × 122,080.09
  4. Step 4: Simplify right side
    324,445.94x = 59,412,583,112.20
  5. Step 5: Solve for x
    x = 59,412,583,112.20/324,445.94
  6. Step 6: Final answer
    x = 183,120.13

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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.