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Finding the Fourth Proportional to 534,653.56, 737,793.71 and 305,201.72

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Solution

The fourth proportional to 534,653.56, 737,793.71 and 305,201.72 is: 421,162.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,653.56 : 737,793.71 = 305,201.72 : x
  2. Step 2: Convert to fraction form
    534,653.56/737,793.71 = 305,201.72/x
  3. Step 3: Cross multiply
    534,653.56x = 737,793.71 × 305,201.72
  4. Step 4: Simplify right side
    534,653.56x = 225,175,912,476.92
  5. Step 5: Solve for x
    x = 225,175,912,476.92/534,653.56
  6. Step 6: Final answer
    x = 421,162.28

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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.