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Finding the Fourth Proportional to 519,649.50, 716,554.32 and 451,078.86

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Solution

The fourth proportional to 519,649.50, 716,554.32 and 451,078.86 is: 622,000.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,649.50 : 716,554.32 = 451,078.86 : x
  2. Step 2: Convert to fraction form
    519,649.50/716,554.32 = 451,078.86/x
  3. Step 3: Cross multiply
    519,649.50x = 716,554.32 × 451,078.86
  4. Step 4: Simplify right side
    519,649.50x = 323,222,505,793.68
  5. Step 5: Solve for x
    x = 323,222,505,793.68/519,649.50
  6. Step 6: Final answer
    x = 622,000.99

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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.