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Finding the Fourth Proportional to 560,617.12, 773,640.12 and 305,968.24

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Solution

The fourth proportional to 560,617.12, 773,640.12 and 305,968.24 is: 422,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,617.12 : 773,640.12 = 305,968.24 : x
  2. Step 2: Convert to fraction form
    560,617.12/773,640.12 = 305,968.24/x
  3. Step 3: Cross multiply
    560,617.12x = 773,640.12 × 305,968.24
  4. Step 4: Simplify right side
    560,617.12x = 236,709,305,909.79
  5. Step 5: Solve for x
    x = 236,709,305,909.79/560,617.12
  6. Step 6: Final answer
    x = 422,229.89

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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.