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Finding the Fourth Proportional to 688,876, 1,033,328.25 and 250,680.73

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Solution

The fourth proportional to 688,876, 1,033,328.25 and 250,680.73 is: 376,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,876 : 1,033,328.25 = 250,680.73 : x
  2. Step 2: Convert to fraction form
    688,876/1,033,328.25 = 250,680.73/x
  3. Step 3: Cross multiply
    688,876x = 1,033,328.25 × 250,680.73
  4. Step 4: Simplify right side
    688,876x = 259,035,480,039.62
  5. Step 5: Solve for x
    x = 259,035,480,039.62/688,876
  6. Step 6: Final answer
    x = 376,026.28

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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.