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Finding the Fourth Proportional to 331,968.72, 458,155.56 and 188,750.22

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Solution

The fourth proportional to 331,968.72, 458,155.56 and 188,750.22 is: 260,497.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,968.72 : 458,155.56 = 188,750.22 : x
  2. Step 2: Convert to fraction form
    331,968.72/458,155.56 = 188,750.22/x
  3. Step 3: Cross multiply
    331,968.72x = 458,155.56 × 188,750.22
  4. Step 4: Simplify right side
    331,968.72x = 86,476,962,744.22
  5. Step 5: Solve for x
    x = 86,476,962,744.22/331,968.72
  6. Step 6: Final answer
    x = 260,497.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.