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Finding the Fourth Proportional to 363,905.60, 545,858.40 and 164,451.20

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Solution

The fourth proportional to 363,905.60, 545,858.40 and 164,451.20 is: 246,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,905.60 : 545,858.40 = 164,451.20 : x
  2. Step 2: Convert to fraction form
    363,905.60/545,858.40 = 164,451.20/x
  3. Step 3: Cross multiply
    363,905.60x = 545,858.40 × 164,451.20
  4. Step 4: Simplify right side
    363,905.60x = 89,767,068,910.08
  5. Step 5: Solve for x
    x = 89,767,068,910.08/363,905.60
  6. Step 6: Final answer
    x = 246,676.80

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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.