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Finding the Fourth Proportional to 411,999.82, 568,512.75 and 230,686.54

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Solution

The fourth proportional to 411,999.82, 568,512.75 and 230,686.54 is: 318,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,999.82 : 568,512.75 = 230,686.54 : x
  2. Step 2: Convert to fraction form
    411,999.82/568,512.75 = 230,686.54/x
  3. Step 3: Cross multiply
    411,999.82x = 568,512.75 × 230,686.54
  4. Step 4: Simplify right side
    411,999.82x = 131,148,236,400.82
  5. Step 5: Solve for x
    x = 131,148,236,400.82/411,999.82
  6. Step 6: Final answer
    x = 318,321.11

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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.