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Finding the Fourth Proportional to 439,473.54, 606,485.43 and 248,515.50

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Solution

The fourth proportional to 439,473.54, 606,485.43 and 248,515.50 is: 342,958.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,473.54 : 606,485.43 = 248,515.50 : x
  2. Step 2: Convert to fraction form
    439,473.54/606,485.43 = 248,515.50/x
  3. Step 3: Cross multiply
    439,473.54x = 606,485.43 × 248,515.50
  4. Step 4: Simplify right side
    439,473.54x = 150,721,029,879.17
  5. Step 5: Solve for x
    x = 150,721,029,879.17/439,473.54
  6. Step 6: Final answer
    x = 342,958.14

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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.