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Finding the Fourth Proportional to 354,951.40, 532,427.10 and 327,917.80

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Solution

The fourth proportional to 354,951.40, 532,427.10 and 327,917.80 is: 491,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,951.40 : 532,427.10 = 327,917.80 : x
  2. Step 2: Convert to fraction form
    354,951.40/532,427.10 = 327,917.80/x
  3. Step 3: Cross multiply
    354,951.40x = 532,427.10 × 327,917.80
  4. Step 4: Simplify right side
    354,951.40x = 174,592,323,292.38
  5. Step 5: Solve for x
    x = 174,592,323,292.38/354,951.40
  6. Step 6: Final answer
    x = 491,876.70

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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.