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Finding the Fourth Proportional to 611,748.86, 843,977.88 and 450,986.13

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Solution

The fourth proportional to 611,748.86, 843,977.88 and 450,986.13 is: 622,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,748.86 : 843,977.88 = 450,986.13 : x
  2. Step 2: Convert to fraction form
    611,748.86/843,977.88 = 450,986.13/x
  3. Step 3: Cross multiply
    611,748.86x = 843,977.88 × 450,986.13
  4. Step 4: Simplify right side
    611,748.86x = 380,622,317,906.80
  5. Step 5: Solve for x
    x = 380,622,317,906.80/611,748.86
  6. Step 6: Final answer
    x = 622,187.22

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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.