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Finding the Fourth Proportional to 534,511.09, 737,601.15 and 319,769.56

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Solution

The fourth proportional to 534,511.09, 737,601.15 and 319,769.56 is: 441,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,511.09 : 737,601.15 = 319,769.56 : x
  2. Step 2: Convert to fraction form
    534,511.09/737,601.15 = 319,769.56/x
  3. Step 3: Cross multiply
    534,511.09x = 737,601.15 × 319,769.56
  4. Step 4: Simplify right side
    534,511.09x = 235,862,395,190.99
  5. Step 5: Solve for x
    x = 235,862,395,190.99/534,511.09
  6. Step 6: Final answer
    x = 441,267.54

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1.5x scale

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.