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Finding the Fourth Proportional to 330,225.92, 455,716.32 and 186,982.88

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Solution

The fourth proportional to 330,225.92, 455,716.32 and 186,982.88 is: 258,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,225.92 : 455,716.32 = 186,982.88 : x
  2. Step 2: Convert to fraction form
    330,225.92/455,716.32 = 186,982.88/x
  3. Step 3: Cross multiply
    330,225.92x = 455,716.32 × 186,982.88
  4. Step 4: Simplify right side
    330,225.92x = 85,211,149,976.60
  5. Step 5: Solve for x
    x = 85,211,149,976.60/330,225.92
  6. Step 6: Final answer
    x = 258,038.95

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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.