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Finding the Fourth Proportional to 354,966.40, 532,449.60 and 327,932.80

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Solution

The fourth proportional to 354,966.40, 532,449.60 and 327,932.80 is: 491,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,966.40 : 532,449.60 = 327,932.80 : x
  2. Step 2: Convert to fraction form
    354,966.40/532,449.60 = 327,932.80/x
  3. Step 3: Cross multiply
    354,966.40x = 532,449.60 × 327,932.80
  4. Step 4: Simplify right side
    354,966.40x = 174,607,688,186.88
  5. Step 5: Solve for x
    x = 174,607,688,186.88/354,966.40
  6. Step 6: Final answer
    x = 491,899.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.