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Finding the Fourth Proportional to 907,856.88, 1,361,610 and 276,834.48

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Solution

The fourth proportional to 907,856.88, 1,361,610 and 276,834.48 is: 415,198.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,856.88 : 1,361,610 = 276,834.48 : x
  2. Step 2: Convert to fraction form
    907,856.88/1,361,610 = 276,834.48/x
  3. Step 3: Cross multiply
    907,856.88x = 1,361,610 × 276,834.48
  4. Step 4: Simplify right side
    907,856.88x = 376,940,596,312.80
  5. Step 5: Solve for x
    x = 376,940,596,312.80/907,856.88
  6. Step 6: Final answer
    x = 415,198.26

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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.