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Finding the Fourth Proportional to 329,766.56, 455,145.84 and 186,532.64

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Solution

The fourth proportional to 329,766.56, 455,145.84 and 186,532.64 is: 257,453.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,766.56 : 455,145.84 = 186,532.64 : x
  2. Step 2: Convert to fraction form
    329,766.56/455,145.84 = 186,532.64/x
  3. Step 3: Cross multiply
    329,766.56x = 455,145.84 × 186,532.64
  4. Step 4: Simplify right side
    329,766.56x = 84,899,555,120.22
  5. Step 5: Solve for x
    x = 84,899,555,120.22/329,766.56
  6. Step 6: Final answer
    x = 257,453.50

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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.