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Finding the Fourth Proportional to 560,335.44, 773,247.60 and 305,686.56

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Solution

The fourth proportional to 560,335.44, 773,247.60 and 305,686.56 is: 421,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,335.44 : 773,247.60 = 305,686.56 : x
  2. Step 2: Convert to fraction form
    560,335.44/773,247.60 = 305,686.56/x
  3. Step 3: Cross multiply
    560,335.44x = 773,247.60 × 305,686.56
  4. Step 4: Simplify right side
    560,335.44x = 236,371,398,872.26
  5. Step 5: Solve for x
    x = 236,371,398,872.26/560,335.44
  6. Step 6: Final answer
    x = 421,839.10

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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.