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Finding the Fourth Proportional to 324,064.08, 447,302.28 and 188,128.56

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Solution

The fourth proportional to 324,064.08, 447,302.28 and 188,128.56 is: 259,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,064.08 : 447,302.28 = 188,128.56 : x
  2. Step 2: Convert to fraction form
    324,064.08/447,302.28 = 188,128.56/x
  3. Step 3: Cross multiply
    324,064.08x = 447,302.28 × 188,128.56
  4. Step 4: Simplify right side
    324,064.08x = 84,150,333,821.12
  5. Step 5: Solve for x
    x = 84,150,333,821.12/324,064.08
  6. Step 6: Final answer
    x = 259,671.90

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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.