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Finding the Fourth Proportional to 324,186.30, 485,404.65 and 324,186.30

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Solution

The fourth proportional to 324,186.30, 485,404.65 and 324,186.30 is: 485,404.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,186.30 : 485,404.65 = 324,186.30 : x
  2. Step 2: Convert to fraction form
    324,186.30/485,404.65 = 324,186.30/x
  3. Step 3: Cross multiply
    324,186.30x = 485,404.65 × 324,186.30
  4. Step 4: Simplify right side
    324,186.30x = 157,361,537,486.30
  5. Step 5: Solve for x
    x = 157,361,537,486.30/324,186.30
  6. Step 6: Final answer
    x = 485,404.65

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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.