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Finding the Fourth Proportional to 450,662.51, 621,914.21 and 246,712.80

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Solution

The fourth proportional to 450,662.51, 621,914.21 and 246,712.80 is: 340,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,662.51 : 621,914.21 = 246,712.80 : x
  2. Step 2: Convert to fraction form
    450,662.51/621,914.21 = 246,712.80/x
  3. Step 3: Cross multiply
    450,662.51x = 621,914.21 × 246,712.80
  4. Step 4: Simplify right side
    450,662.51x = 153,434,193,616.10
  5. Step 5: Solve for x
    x = 153,434,193,616.10/450,662.51
  6. Step 6: Final answer
    x = 340,463.63

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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.