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Finding the Fourth Proportional to 404,523.90, 605,619.45 and 247,059.90

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Solution

The fourth proportional to 404,523.90, 605,619.45 and 247,059.90 is: 369,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,523.90 : 605,619.45 = 247,059.90 : x
  2. Step 2: Convert to fraction form
    404,523.90/605,619.45 = 247,059.90/x
  3. Step 3: Cross multiply
    404,523.90x = 605,619.45 × 247,059.90
  4. Step 4: Simplify right side
    404,523.90x = 149,624,280,755.06
  5. Step 5: Solve for x
    x = 149,624,280,755.06/404,523.90
  6. Step 6: Final answer
    x = 369,877.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.