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Finding the Fourth Proportional to 364,992.40, 547,488.60 and 323,520.40

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Solution

The fourth proportional to 364,992.40, 547,488.60 and 323,520.40 is: 485,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,992.40 : 547,488.60 = 323,520.40 : x
  2. Step 2: Convert to fraction form
    364,992.40/547,488.60 = 323,520.40/x
  3. Step 3: Cross multiply
    364,992.40x = 547,488.60 × 323,520.40
  4. Step 4: Simplify right side
    364,992.40x = 177,123,730,867.44
  5. Step 5: Solve for x
    x = 177,123,730,867.44/364,992.40
  6. Step 6: Final answer
    x = 485,280.60

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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.