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Finding the Fourth Proportional to 533,853.48, 736,644.96 and 318,947.88

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Solution

The fourth proportional to 533,853.48, 736,644.96 and 318,947.88 is: 440,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,853.48 : 736,644.96 = 318,947.88 : x
  2. Step 2: Convert to fraction form
    533,853.48/736,644.96 = 318,947.88/x
  3. Step 3: Cross multiply
    533,853.48x = 736,644.96 × 318,947.88
  4. Step 4: Simplify right side
    533,853.48x = 234,951,348,304.69
  5. Step 5: Solve for x
    x = 234,951,348,304.69/533,853.48
  6. Step 6: Final answer
    x = 440,104.56

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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.