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Finding the Fourth Proportional to 515,317.48, 773,246.46 and 374,327.56

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Solution

The fourth proportional to 515,317.48, 773,246.46 and 374,327.56 is: 561,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,317.48 : 773,246.46 = 374,327.56 : x
  2. Step 2: Convert to fraction form
    515,317.48/773,246.46 = 374,327.56/x
  3. Step 3: Cross multiply
    515,317.48x = 773,246.46 × 374,327.56
  4. Step 4: Simplify right side
    515,317.48x = 289,447,460,650.44
  5. Step 5: Solve for x
    x = 289,447,460,650.44/515,317.48
  6. Step 6: Final answer
    x = 561,687.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.