Home / 438,815.82-605,577.78-247,857.60

Finding the Fourth Proportional to 438,815.82, 605,577.78 and 247,857.60

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Solution

The fourth proportional to 438,815.82, 605,577.78 and 247,857.60 is: 342,050.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,815.82 : 605,577.78 = 247,857.60 : x
  2. Step 2: Convert to fraction form
    438,815.82/605,577.78 = 247,857.60/x
  3. Step 3: Cross multiply
    438,815.82x = 605,577.78 × 247,857.60
  4. Step 4: Simplify right side
    438,815.82x = 150,097,055,164.13
  5. Step 5: Solve for x
    x = 150,097,055,164.13/438,815.82
  6. Step 6: Final answer
    x = 342,050.24

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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.