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Finding the Fourth Proportional to 264,987.62, 397,493.73 and 85,080.38

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Solution

The fourth proportional to 264,987.62, 397,493.73 and 85,080.38 is: 127,624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,987.62 : 397,493.73 = 85,080.38 : x
  2. Step 2: Convert to fraction form
    264,987.62/397,493.73 = 85,080.38/x
  3. Step 3: Cross multiply
    264,987.62x = 397,493.73 × 85,080.38
  4. Step 4: Simplify right side
    264,987.62x = 33,818,917,596.02
  5. Step 5: Solve for x
    x = 33,818,917,596.02/264,987.62
  6. Step 6: Final answer
    x = 127,624.52

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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.