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Finding the Fourth Proportional to 330,134.96, 455,614.44 and 186,920.24

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Solution

The fourth proportional to 330,134.96, 455,614.44 and 186,920.24 is: 257,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,134.96 : 455,614.44 = 186,920.24 : x
  2. Step 2: Convert to fraction form
    330,134.96/455,614.44 = 186,920.24/x
  3. Step 3: Cross multiply
    330,134.96x = 455,614.44 × 186,920.24
  4. Step 4: Simplify right side
    330,134.96x = 85,163,560,472.27
  5. Step 5: Solve for x
    x = 85,163,560,472.27/330,134.96
  6. Step 6: Final answer
    x = 257,965.90

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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.