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Finding the Fourth Proportional to 469,891.59, 648,456.62 and 255,034.23

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Solution

The fourth proportional to 469,891.59, 648,456.62 and 255,034.23 is: 351,950.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,891.59 : 648,456.62 = 255,034.23 : x
  2. Step 2: Convert to fraction form
    469,891.59/648,456.62 = 255,034.23/x
  3. Step 3: Cross multiply
    469,891.59x = 648,456.62 × 255,034.23
  4. Step 4: Simplify right side
    469,891.59x = 165,378,633,494.93
  5. Step 5: Solve for x
    x = 165,378,633,494.93/469,891.59
  6. Step 6: Final answer
    x = 351,950.61

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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.