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Finding the Fourth Proportional to 560,193.48, 773,077.50 and 305,553.78

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Solution

The fourth proportional to 560,193.48, 773,077.50 and 305,553.78 is: 421,669.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,193.48 : 773,077.50 = 305,553.78 : x
  2. Step 2: Convert to fraction form
    560,193.48/773,077.50 = 305,553.78/x
  3. Step 3: Cross multiply
    560,193.48x = 773,077.50 × 305,553.78
  4. Step 4: Simplify right side
    560,193.48x = 236,216,752,357.95
  5. Step 5: Solve for x
    x = 236,216,752,357.95/560,193.48
  6. Step 6: Final answer
    x = 421,669.94

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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.