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Finding the Fourth Proportional to 348,051.92, 479,891.40 and 294,242

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Solution

The fourth proportional to 348,051.92, 479,891.40 and 294,242 is: 405,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,051.92 : 479,891.40 = 294,242 : x
  2. Step 2: Convert to fraction form
    348,051.92/479,891.40 = 294,242/x
  3. Step 3: Cross multiply
    348,051.92x = 479,891.40 × 294,242
  4. Step 4: Simplify right side
    348,051.92x = 141,204,205,318.80
  5. Step 5: Solve for x
    x = 141,204,205,318.80/348,051.92
  6. Step 6: Final answer
    x = 405,698.68

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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.