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Finding the Fourth Proportional to 560,287.64, 773,191.96 and 305,633.36

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Solution

The fourth proportional to 560,287.64, 773,191.96 and 305,633.36 is: 421,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,287.64 : 773,191.96 = 305,633.36 : x
  2. Step 2: Convert to fraction form
    560,287.64/773,191.96 = 305,633.36/x
  3. Step 3: Cross multiply
    560,287.64x = 773,191.96 × 305,633.36
  4. Step 4: Simplify right side
    560,287.64x = 236,313,256,659.79
  5. Step 5: Solve for x
    x = 236,313,256,659.79/560,287.64
  6. Step 6: Final answer
    x = 421,771.32

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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.