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Finding the Fourth Proportional to 560,616.12, 773,638.74 and 305,967.24

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Solution

The fourth proportional to 560,616.12, 773,638.74 and 305,967.24 is: 422,228.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,616.12 : 773,638.74 = 305,967.24 : x
  2. Step 2: Convert to fraction form
    560,616.12/773,638.74 = 305,967.24/x
  3. Step 3: Cross multiply
    560,616.12x = 773,638.74 × 305,967.24
  4. Step 4: Simplify right side
    560,616.12x = 236,708,110,034.88
  5. Step 5: Solve for x
    x = 236,708,110,034.88/560,616.12
  6. Step 6: Final answer
    x = 422,228.51

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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.