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Finding the Fourth Proportional to 324,131.71, 447,346.84 and 180,900.98

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Solution

The fourth proportional to 324,131.71, 447,346.84 and 180,900.98 is: 249,668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,131.71 : 447,346.84 = 180,900.98 : x
  2. Step 2: Convert to fraction form
    324,131.71/447,346.84 = 180,900.98/x
  3. Step 3: Cross multiply
    324,131.71x = 447,346.84 × 180,900.98
  4. Step 4: Simplify right side
    324,131.71x = 80,925,479,066.92
  5. Step 5: Solve for x
    x = 80,925,479,066.92/324,131.71
  6. Step 6: Final answer
    x = 249,668.51

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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.