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Finding the Fourth Proportional to 675,274.31, 1,012,537.53 and 276,195.33

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Solution

The fourth proportional to 675,274.31, 1,012,537.53 and 276,195.33 is: 414,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,274.31 : 1,012,537.53 = 276,195.33 : x
  2. Step 2: Convert to fraction form
    675,274.31/1,012,537.53 = 276,195.33/x
  3. Step 3: Cross multiply
    675,274.31x = 1,012,537.53 × 276,195.33
  4. Step 4: Simplify right side
    675,274.31x = 279,658,137,235.74
  5. Step 5: Solve for x
    x = 279,658,137,235.74/675,274.31
  6. Step 6: Final answer
    x = 414,140.05

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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.