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Finding the Fourth Proportional to 439,360.14, 606,343.14 and 248,391.30

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Solution

The fourth proportional to 439,360.14, 606,343.14 and 248,391.30 is: 342,794.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,360.14 : 606,343.14 = 248,391.30 : x
  2. Step 2: Convert to fraction form
    439,360.14/606,343.14 = 248,391.30/x
  3. Step 3: Cross multiply
    439,360.14x = 606,343.14 × 248,391.30
  4. Step 4: Simplify right side
    439,360.14x = 150,610,360,790.68
  5. Step 5: Solve for x
    x = 150,610,360,790.68/439,360.14
  6. Step 6: Final answer
    x = 342,794.78

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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.