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Finding the Fourth Proportional to 606,986.10, 910,843.65 and 251,963.10

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Solution

The fourth proportional to 606,986.10, 910,843.65 and 251,963.10 is: 378,095.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,986.10 : 910,843.65 = 251,963.10 : x
  2. Step 2: Convert to fraction form
    606,986.10/910,843.65 = 251,963.10/x
  3. Step 3: Cross multiply
    606,986.10x = 910,843.65 × 251,963.10
  4. Step 4: Simplify right side
    606,986.10x = 229,498,989,669.32
  5. Step 5: Solve for x
    x = 229,498,989,669.32/606,986.10
  6. Step 6: Final answer
    x = 378,095.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.