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Finding the Fourth Proportional to 438,539.94, 605,172.87 and 247,571.10

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Solution

The fourth proportional to 438,539.94, 605,172.87 and 247,571.10 is: 341,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,539.94 : 605,172.87 = 247,571.10 : x
  2. Step 2: Convert to fraction form
    438,539.94/605,172.87 = 247,571.10/x
  3. Step 3: Cross multiply
    438,539.94x = 605,172.87 × 247,571.10
  4. Step 4: Simplify right side
    438,539.94x = 149,823,313,116.06
  5. Step 5: Solve for x
    x = 149,823,313,116.06/438,539.94
  6. Step 6: Final answer
    x = 341,641.20

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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.