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Finding the Fourth Proportional to 554,473.44, 765,172.44 and 312,755.27

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Solution

The fourth proportional to 554,473.44, 765,172.44 and 312,755.27 is: 431,601.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,473.44 : 765,172.44 = 312,755.27 : x
  2. Step 2: Convert to fraction form
    554,473.44/765,172.44 = 312,755.27/x
  3. Step 3: Cross multiply
    554,473.44x = 765,172.44 × 312,755.27
  4. Step 4: Simplify right side
    554,473.44x = 239,311,709,242.90
  5. Step 5: Solve for x
    x = 239,311,709,242.90/554,473.44
  6. Step 6: Final answer
    x = 431,601.75

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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.