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Finding the Fourth Proportional to 554,955.16, 765,843.59 and 300,311.82

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Solution

The fourth proportional to 554,955.16, 765,843.59 and 300,311.82 is: 414,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,955.16 : 765,843.59 = 300,311.82 : x
  2. Step 2: Convert to fraction form
    554,955.16/765,843.59 = 300,311.82/x
  3. Step 3: Cross multiply
    554,955.16x = 765,843.59 × 300,311.82
  4. Step 4: Simplify right side
    554,955.16x = 229,991,882,348.23
  5. Step 5: Solve for x
    x = 229,991,882,348.23/554,955.16
  6. Step 6: Final answer
    x = 414,433.27

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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.