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Finding the Fourth Proportional to 323,173.45, 445,979.37 and 187,233.67

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Solution

The fourth proportional to 323,173.45, 445,979.37 and 187,233.67 is: 258,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,173.45 : 445,979.37 = 187,233.67 : x
  2. Step 2: Convert to fraction form
    323,173.45/445,979.37 = 187,233.67/x
  3. Step 3: Cross multiply
    323,173.45x = 445,979.37 × 187,233.67
  4. Step 4: Simplify right side
    323,173.45x = 83,502,354,189.39
  5. Step 5: Solve for x
    x = 83,502,354,189.39/323,173.45
  6. Step 6: Final answer
    x = 258,382.47

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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.