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Finding the Fourth Proportional to 647,243.92, 893,227.26 and 360,766.36

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Solution

The fourth proportional to 647,243.92, 893,227.26 and 360,766.36 is: 497,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,243.92 : 893,227.26 = 360,766.36 : x
  2. Step 2: Convert to fraction form
    647,243.92/893,227.26 = 360,766.36/x
  3. Step 3: Cross multiply
    647,243.92x = 893,227.26 × 360,766.36
  4. Step 4: Simplify right side
    647,243.92x = 322,246,347,242.97
  5. Step 5: Solve for x
    x = 322,246,347,242.97/647,243.92
  6. Step 6: Final answer
    x = 497,874.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.