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Finding the Fourth Proportional to 344,638.31, 516,484.52 and 218,051.94

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Solution

The fourth proportional to 344,638.31, 516,484.52 and 218,051.94 is: 326,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,638.31 : 516,484.52 = 218,051.94 : x
  2. Step 2: Convert to fraction form
    344,638.31/516,484.52 = 218,051.94/x
  3. Step 3: Cross multiply
    344,638.31x = 516,484.52 × 218,051.94
  4. Step 4: Simplify right side
    344,638.31x = 112,620,451,565.97
  5. Step 5: Solve for x
    x = 112,620,451,565.97/344,638.31
  6. Step 6: Final answer
    x = 326,778.68

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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.