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Finding the Fourth Proportional to 267,999.20, 401,653.20 and 127,455.20

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Solution

The fourth proportional to 267,999.20, 401,653.20 and 127,455.20 is: 191,018.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,999.20 : 401,653.20 = 127,455.20 : x
  2. Step 2: Convert to fraction form
    267,999.20/401,653.20 = 127,455.20/x
  3. Step 3: Cross multiply
    267,999.20x = 401,653.20 × 127,455.20
  4. Step 4: Simplify right side
    267,999.20x = 51,192,788,936.64
  5. Step 5: Solve for x
    x = 51,192,788,936.64/267,999.20
  6. Step 6: Final answer
    x = 191,018.44

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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.