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Finding the Fourth Proportional to 324,419.96, 447,695.16 and 188,530.76

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Solution

The fourth proportional to 324,419.96, 447,695.16 and 188,530.76 is: 260,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,419.96 : 447,695.16 = 188,530.76 : x
  2. Step 2: Convert to fraction form
    324,419.96/447,695.16 = 188,530.76/x
  3. Step 3: Cross multiply
    324,419.96x = 447,695.16 × 188,530.76
  4. Step 4: Simplify right side
    324,419.96x = 84,404,308,763.12
  5. Step 5: Solve for x
    x = 84,404,308,763.12/324,419.96
  6. Step 6: Final answer
    x = 260,169.90

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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.