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Finding the Fourth Proportional to 324,479.16, 447,790.28 and 179,294.31

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Solution

The fourth proportional to 324,479.16, 447,790.28 and 179,294.31 is: 247,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,479.16 : 447,790.28 = 179,294.31 : x
  2. Step 2: Convert to fraction form
    324,479.16/447,790.28 = 179,294.31/x
  3. Step 3: Cross multiply
    324,479.16x = 447,790.28 × 179,294.31
  4. Step 4: Simplify right side
    324,479.16x = 80,286,248,380.84
  5. Step 5: Solve for x
    x = 80,286,248,380.84/324,479.16
  6. Step 6: Final answer
    x = 247,431.14

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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.