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Finding the Fourth Proportional to 675,092.60, 1,012,638.90 and 275,600.60

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Solution

The fourth proportional to 675,092.60, 1,012,638.90 and 275,600.60 is: 413,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,092.60 : 1,012,638.90 = 275,600.60 : x
  2. Step 2: Convert to fraction form
    675,092.60/1,012,638.90 = 275,600.60/x
  3. Step 3: Cross multiply
    675,092.60x = 1,012,638.90 × 275,600.60
  4. Step 4: Simplify right side
    675,092.60x = 279,083,888,423.34
  5. Step 5: Solve for x
    x = 279,083,888,423.34/675,092.60
  6. Step 6: Final answer
    x = 413,400.90

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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.