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Finding the Fourth Proportional to 264,010.40, 396,015.60 and 220,464.80

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Solution

The fourth proportional to 264,010.40, 396,015.60 and 220,464.80 is: 330,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,010.40 : 396,015.60 = 220,464.80 : x
  2. Step 2: Convert to fraction form
    264,010.40/396,015.60 = 220,464.80/x
  3. Step 3: Cross multiply
    264,010.40x = 396,015.60 × 220,464.80
  4. Step 4: Simplify right side
    264,010.40x = 87,307,500,050.88
  5. Step 5: Solve for x
    x = 87,307,500,050.88/264,010.40
  6. Step 6: Final answer
    x = 330,697.20

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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.