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Finding the Fourth Proportional to 394,300.80, 544,134.51 and 224,534.97

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Solution

The fourth proportional to 394,300.80, 544,134.51 and 224,534.97 is: 309,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,300.80 : 544,134.51 = 224,534.97 : x
  2. Step 2: Convert to fraction form
    394,300.80/544,134.51 = 224,534.97/x
  3. Step 3: Cross multiply
    394,300.80x = 544,134.51 × 224,534.97
  4. Step 4: Simplify right side
    394,300.80x = 122,177,225,878.82
  5. Step 5: Solve for x
    x = 122,177,225,878.82/394,300.80
  6. Step 6: Final answer
    x = 309,857.92

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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.