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Finding the Fourth Proportional to 439,077.88, 605,881.11 and 248,054.38

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Solution

The fourth proportional to 439,077.88, 605,881.11 and 248,054.38 is: 342,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,077.88 : 605,881.11 = 248,054.38 : x
  2. Step 2: Convert to fraction form
    439,077.88/605,881.11 = 248,054.38/x
  3. Step 3: Cross multiply
    439,077.88x = 605,881.11 × 248,054.38
  4. Step 4: Simplify right side
    439,077.88x = 150,291,463,094.76
  5. Step 5: Solve for x
    x = 150,291,463,094.76/439,077.88
  6. Step 6: Final answer
    x = 342,288.85

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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.