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Finding the Fourth Proportional to 554,955.04, 765,843.42 and 300,311.68

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Solution

The fourth proportional to 554,955.04, 765,843.42 and 300,311.68 is: 414,433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,955.04 : 765,843.42 = 300,311.68 : x
  2. Step 2: Convert to fraction form
    554,955.04/765,843.42 = 300,311.68/x
  3. Step 3: Cross multiply
    554,955.04x = 765,843.42 × 300,311.68
  4. Step 4: Simplify right side
    554,955.04x = 229,991,724,077.15
  5. Step 5: Solve for x
    x = 229,991,724,077.15/554,955.04
  6. Step 6: Final answer
    x = 414,433.08

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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.