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Finding the Fourth Proportional to 551,278.45, 825,810.49 and 251,346.44

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Solution

The fourth proportional to 551,278.45, 825,810.49 and 251,346.44 is: 376,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,278.45 : 825,810.49 = 251,346.44 : x
  2. Step 2: Convert to fraction form
    551,278.45/825,810.49 = 251,346.44/x
  3. Step 3: Cross multiply
    551,278.45x = 825,810.49 × 251,346.44
  4. Step 4: Simplify right side
    551,278.45x = 207,564,521,390.37
  5. Step 5: Solve for x
    x = 207,564,521,390.37/551,278.45
  6. Step 6: Final answer
    x = 376,514.85

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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.