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Finding the Fourth Proportional to 324,633.86, 447,459.45 and 217,165.22

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Solution

The fourth proportional to 324,633.86, 447,459.45 and 217,165.22 is: 299,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,633.86 : 447,459.45 = 217,165.22 : x
  2. Step 2: Convert to fraction form
    324,633.86/447,459.45 = 217,165.22/x
  3. Step 3: Cross multiply
    324,633.86x = 447,459.45 × 217,165.22
  4. Step 4: Simplify right side
    324,633.86x = 97,172,629,900.33
  5. Step 5: Solve for x
    x = 97,172,629,900.33/324,633.86
  6. Step 6: Final answer
    x = 299,329.93

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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.