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Finding the Fourth Proportional to 364,672.80, 547,009.20 and 318,016.80

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Solution

The fourth proportional to 364,672.80, 547,009.20 and 318,016.80 is: 477,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,672.80 : 547,009.20 = 318,016.80 : x
  2. Step 2: Convert to fraction form
    364,672.80/547,009.20 = 318,016.80/x
  3. Step 3: Cross multiply
    364,672.80x = 547,009.20 × 318,016.80
  4. Step 4: Simplify right side
    364,672.80x = 173,958,115,354.56
  5. Step 5: Solve for x
    x = 173,958,115,354.56/364,672.80
  6. Step 6: Final answer
    x = 477,025.20

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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.