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Finding the Fourth Proportional to 647,174.54, 893,131.29 and 360,696.62

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Solution

The fourth proportional to 647,174.54, 893,131.29 and 360,696.62 is: 497,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,174.54 : 893,131.29 = 360,696.62 : x
  2. Step 2: Convert to fraction form
    647,174.54/893,131.29 = 360,696.62/x
  3. Step 3: Cross multiply
    647,174.54x = 893,131.29 × 360,696.62
  4. Step 4: Simplify right side
    647,174.54x = 322,149,437,519.24
  5. Step 5: Solve for x
    x = 322,149,437,519.24/647,174.54
  6. Step 6: Final answer
    x = 497,778.29

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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.