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Finding the Fourth Proportional to 394,798.51, 544,823.57 and 213,510.44

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Solution

The fourth proportional to 394,798.51, 544,823.57 and 213,510.44 is: 294,645.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,798.51 : 544,823.57 = 213,510.44 : x
  2. Step 2: Convert to fraction form
    394,798.51/544,823.57 = 213,510.44/x
  3. Step 3: Cross multiply
    394,798.51x = 544,823.57 × 213,510.44
  4. Step 4: Simplify right side
    394,798.51x = 116,325,520,153.07
  5. Step 5: Solve for x
    x = 116,325,520,153.07/394,798.51
  6. Step 6: Final answer
    x = 294,645.29

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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.