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Finding the Fourth Proportional to 651,999.41, 899,745.78 and 361,564.11

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Solution

The fourth proportional to 651,999.41, 899,745.78 and 361,564.11 is: 498,951.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,999.41 : 899,745.78 = 361,564.11 : x
  2. Step 2: Convert to fraction form
    651,999.41/899,745.78 = 361,564.11/x
  3. Step 3: Cross multiply
    651,999.41x = 899,745.78 × 361,564.11
  4. Step 4: Simplify right side
    651,999.41x = 325,315,782,171.96
  5. Step 5: Solve for x
    x = 325,315,782,171.96/651,999.41
  6. Step 6: Final answer
    x = 498,951.04

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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.