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Finding the Fourth Proportional to 289,115.20, 433,672.80 and 184,009.60

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Solution

The fourth proportional to 289,115.20, 433,672.80 and 184,009.60 is: 276,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,115.20 : 433,672.80 = 184,009.60 : x
  2. Step 2: Convert to fraction form
    289,115.20/433,672.80 = 184,009.60/x
  3. Step 3: Cross multiply
    289,115.20x = 433,672.80 × 184,009.60
  4. Step 4: Simplify right side
    289,115.20x = 79,799,958,458.88
  5. Step 5: Solve for x
    x = 79,799,958,458.88/289,115.20
  6. Step 6: Final answer
    x = 276,014.40

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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.