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Finding the Fourth Proportional to 330,133.96, 455,613.06 and 186,919.24

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Solution

The fourth proportional to 330,133.96, 455,613.06 and 186,919.24 is: 257,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,133.96 : 455,613.06 = 186,919.24 : x
  2. Step 2: Convert to fraction form
    330,133.96/455,613.06 = 186,919.24/x
  3. Step 3: Cross multiply
    330,133.96x = 455,613.06 × 186,919.24
  4. Step 4: Simplify right side
    330,133.96x = 85,162,846,909.27
  5. Step 5: Solve for x
    x = 85,162,846,909.27/330,133.96
  6. Step 6: Final answer
    x = 257,964.52

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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.