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Finding the Fourth Proportional to 264,214.80, 396,322.20 and 259,840.80

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Solution

The fourth proportional to 264,214.80, 396,322.20 and 259,840.80 is: 389,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,214.80 : 396,322.20 = 259,840.80 : x
  2. Step 2: Convert to fraction form
    264,214.80/396,322.20 = 259,840.80/x
  3. Step 3: Cross multiply
    264,214.80x = 396,322.20 × 259,840.80
  4. Step 4: Simplify right side
    264,214.80x = 102,980,677,505.76
  5. Step 5: Solve for x
    x = 102,980,677,505.76/264,214.80
  6. Step 6: Final answer
    x = 389,761.20

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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.