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Finding the Fourth Proportional to 374,221.96, 516,972.72 and 323,833.48

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Solution

The fourth proportional to 374,221.96, 516,972.72 and 323,833.48 is: 447,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,221.96 : 516,972.72 = 323,833.48 : x
  2. Step 2: Convert to fraction form
    374,221.96/516,972.72 = 323,833.48/x
  3. Step 3: Cross multiply
    374,221.96x = 516,972.72 × 323,833.48
  4. Step 4: Simplify right side
    374,221.96x = 167,413,074,982.67
  5. Step 5: Solve for x
    x = 167,413,074,982.67/374,221.96
  6. Step 6: Final answer
    x = 447,363.04

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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.