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Finding the Fourth Proportional to 330,785.50, 456,456.54 and 185,571.42

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Solution

The fourth proportional to 330,785.50, 456,456.54 and 185,571.42 is: 256,073.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,785.50 : 456,456.54 = 185,571.42 : x
  2. Step 2: Convert to fraction form
    330,785.50/456,456.54 = 185,571.42/x
  3. Step 3: Cross multiply
    330,785.50x = 456,456.54 × 185,571.42
  4. Step 4: Simplify right side
    330,785.50x = 84,705,288,991.98
  5. Step 5: Solve for x
    x = 84,705,288,991.98/330,785.50
  6. Step 6: Final answer
    x = 256,073.16

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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.