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Finding the Fourth Proportional to 438,908.91, 605,955.33 and 277,901.97

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Solution

The fourth proportional to 438,908.91, 605,955.33 and 277,901.97 is: 383,670.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,908.91 : 605,955.33 = 277,901.97 : x
  2. Step 2: Convert to fraction form
    438,908.91/605,955.33 = 277,901.97/x
  3. Step 3: Cross multiply
    438,908.91x = 605,955.33 × 277,901.97
  4. Step 4: Simplify right side
    438,908.91x = 168,396,179,939.00
  5. Step 5: Solve for x
    x = 168,396,179,939.00/438,908.91
  6. Step 6: Final answer
    x = 383,670.00

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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.