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Finding the Fourth Proportional to 439,079.88, 605,883.87 and 248,056.38

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Solution

The fourth proportional to 439,079.88, 605,883.87 and 248,056.38 is: 342,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,079.88 : 605,883.87 = 248,056.38 : x
  2. Step 2: Convert to fraction form
    439,079.88/605,883.87 = 248,056.38/x
  3. Step 3: Cross multiply
    439,079.88x = 605,883.87 × 248,056.38
  4. Step 4: Simplify right side
    439,079.88x = 150,293,359,492.59
  5. Step 5: Solve for x
    x = 150,293,359,492.59/439,079.88
  6. Step 6: Final answer
    x = 342,291.61

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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.