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Finding the Fourth Proportional to 300,687.38, 414,937.75 and 171,632.51

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Solution

The fourth proportional to 300,687.38, 414,937.75 and 171,632.51 is: 236,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,687.38 : 414,937.75 = 171,632.51 : x
  2. Step 2: Convert to fraction form
    300,687.38/414,937.75 = 171,632.51/x
  3. Step 3: Cross multiply
    300,687.38x = 414,937.75 × 171,632.51
  4. Step 4: Simplify right side
    300,687.38x = 71,216,807,526.25
  5. Step 5: Solve for x
    x = 71,216,807,526.25/300,687.38
  6. Step 6: Final answer
    x = 236,846.68

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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.