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Finding the Fourth Proportional to 444,591, 613,535.61 and 243,387

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Solution

The fourth proportional to 444,591, 613,535.61 and 243,387 is: 335,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,591 : 613,535.61 = 243,387 : x
  2. Step 2: Convert to fraction form
    444,591/613,535.61 = 243,387/x
  3. Step 3: Cross multiply
    444,591x = 613,535.61 × 243,387
  4. Step 4: Simplify right side
    444,591x = 149,326,591,511.07
  5. Step 5: Solve for x
    x = 149,326,591,511.07/444,591
  6. Step 6: Final answer
    x = 335,874.08

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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.