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Finding the Fourth Proportional to 267,709.77, 401,435.48 and 155,418.25

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Solution

The fourth proportional to 267,709.77, 401,435.48 and 155,418.25 is: 233,052.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,709.77 : 401,435.48 = 155,418.25 : x
  2. Step 2: Convert to fraction form
    267,709.77/401,435.48 = 155,418.25/x
  3. Step 3: Cross multiply
    267,709.77x = 401,435.48 × 155,418.25
  4. Step 4: Simplify right side
    267,709.77x = 62,390,399,789.51
  5. Step 5: Solve for x
    x = 62,390,399,789.51/267,709.77
  6. Step 6: Final answer
    x = 233,052.38

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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.