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Finding the Fourth Proportional to 325,576.80, 488,365.20 and 273,088.80

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Solution

The fourth proportional to 325,576.80, 488,365.20 and 273,088.80 is: 409,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,576.80 : 488,365.20 = 273,088.80 : x
  2. Step 2: Convert to fraction form
    325,576.80/488,365.20 = 273,088.80/x
  3. Step 3: Cross multiply
    325,576.80x = 488,365.20 × 273,088.80
  4. Step 4: Simplify right side
    325,576.80x = 133,367,066,429.76
  5. Step 5: Solve for x
    x = 133,367,066,429.76/325,576.80
  6. Step 6: Final answer
    x = 409,633.20

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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.