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Finding the Fourth Proportional to 320,952.38, 443,030.92 and 186,816.38

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Solution

The fourth proportional to 320,952.38, 443,030.92 and 186,816.38 is: 257,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,952.38 : 443,030.92 = 186,816.38 : x
  2. Step 2: Convert to fraction form
    320,952.38/443,030.92 = 186,816.38/x
  3. Step 3: Cross multiply
    320,952.38x = 443,030.92 × 186,816.38
  4. Step 4: Simplify right side
    320,952.38x = 82,765,430,020.27
  5. Step 5: Solve for x
    x = 82,765,430,020.27/320,952.38
  6. Step 6: Final answer
    x = 257,874.49

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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.