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Finding the Fourth Proportional to 611,149.82, 843,370.62 and 339,217.04

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Solution

The fourth proportional to 611,149.82, 843,370.62 and 339,217.04 is: 468,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,149.82 : 843,370.62 = 339,217.04 : x
  2. Step 2: Convert to fraction form
    611,149.82/843,370.62 = 339,217.04/x
  3. Step 3: Cross multiply
    611,149.82x = 843,370.62 × 339,217.04
  4. Step 4: Simplify right side
    611,149.82x = 286,085,685,339.37
  5. Step 5: Solve for x
    x = 286,085,685,339.37/611,149.82
  6. Step 6: Final answer
    x = 468,110.56

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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.