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Finding the Fourth Proportional to 323,239.86, 484,859.48 and 86,576.09

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Solution

The fourth proportional to 323,239.86, 484,859.48 and 86,576.09 is: 129,864.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,239.86 : 484,859.48 = 86,576.09 : x
  2. Step 2: Convert to fraction form
    323,239.86/484,859.48 = 86,576.09/x
  3. Step 3: Cross multiply
    323,239.86x = 484,859.48 × 86,576.09
  4. Step 4: Simplify right side
    323,239.86x = 41,977,235,120.66
  5. Step 5: Solve for x
    x = 41,977,235,120.66/323,239.86
  6. Step 6: Final answer
    x = 129,864.04

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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.