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Finding the Fourth Proportional to 458,346.86, 632,505.83 and 251,615.22

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Solution

The fourth proportional to 458,346.86, 632,505.83 and 251,615.22 is: 347,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,346.86 : 632,505.83 = 251,615.22 : x
  2. Step 2: Convert to fraction form
    458,346.86/632,505.83 = 251,615.22/x
  3. Step 3: Cross multiply
    458,346.86x = 632,505.83 × 251,615.22
  4. Step 4: Simplify right side
    458,346.86x = 159,148,090,404.20
  5. Step 5: Solve for x
    x = 159,148,090,404.20/458,346.86
  6. Step 6: Final answer
    x = 347,221.95

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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.