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Finding the Fourth Proportional to 496,943.76, 685,763.71 and 303,674.65

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Solution

The fourth proportional to 496,943.76, 685,763.71 and 303,674.65 is: 419,059.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,943.76 : 685,763.71 = 303,674.65 : x
  2. Step 2: Convert to fraction form
    496,943.76/685,763.71 = 303,674.65/x
  3. Step 3: Cross multiply
    496,943.76x = 685,763.71 × 303,674.65
  4. Step 4: Simplify right side
    496,943.76x = 208,249,052,143.36
  5. Step 5: Solve for x
    x = 208,249,052,143.36/496,943.76
  6. Step 6: Final answer
    x = 419,059.59

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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.