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Finding the Fourth Proportional to 907,793.70, 1,361,884.95 and 276,771.30

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Solution

The fourth proportional to 907,793.70, 1,361,884.95 and 276,771.30 is: 415,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,793.70 : 1,361,884.95 = 276,771.30 : x
  2. Step 2: Convert to fraction form
    907,793.70/1,361,884.95 = 276,771.30/x
  3. Step 3: Cross multiply
    907,793.70x = 1,361,884.95 × 276,771.30
  4. Step 4: Simplify right side
    907,793.70x = 376,930,668,061.94
  5. Step 5: Solve for x
    x = 376,930,668,061.94/907,793.70
  6. Step 6: Final answer
    x = 415,216.22

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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.