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Finding the Fourth Proportional to 675,831, 1,012,959.18 and 376,168.26

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Solution

The fourth proportional to 675,831, 1,012,959.18 and 376,168.26 is: 563,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,831 : 1,012,959.18 = 376,168.26 : x
  2. Step 2: Convert to fraction form
    675,831/1,012,959.18 = 376,168.26/x
  3. Step 3: Cross multiply
    675,831x = 1,012,959.18 × 376,168.26
  4. Step 4: Simplify right side
    675,831x = 381,043,092,191.63
  5. Step 5: Solve for x
    x = 381,043,092,191.63/675,831
  6. Step 6: Final answer
    x = 563,814.17

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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.