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Finding the Fourth Proportional to 534,561.66, 737,489.34 and 305,131.86

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Solution

The fourth proportional to 534,561.66, 737,489.34 and 305,131.86 is: 420,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,561.66 : 737,489.34 = 305,131.86 : x
  2. Step 2: Convert to fraction form
    534,561.66/737,489.34 = 305,131.86/x
  3. Step 3: Cross multiply
    534,561.66x = 737,489.34 × 305,131.86
  4. Step 4: Simplify right side
    534,561.66x = 225,031,494,044.37
  5. Step 5: Solve for x
    x = 225,031,494,044.37/534,561.66
  6. Step 6: Final answer
    x = 420,964.52

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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.