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Finding the Fourth Proportional to 354,955.40, 532,433.10 and 327,921.80

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Solution

The fourth proportional to 354,955.40, 532,433.10 and 327,921.80 is: 491,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,955.40 : 532,433.10 = 327,921.80 : x
  2. Step 2: Convert to fraction form
    354,955.40/532,433.10 = 327,921.80/x
  3. Step 3: Cross multiply
    354,955.40x = 532,433.10 × 327,921.80
  4. Step 4: Simplify right side
    354,955.40x = 174,596,420,531.58
  5. Step 5: Solve for x
    x = 174,596,420,531.58/354,955.40
  6. Step 6: Final answer
    x = 491,882.70

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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.