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Finding the Fourth Proportional to 397,668.85, 548,573.88 and 236,409.19

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Solution

The fourth proportional to 397,668.85, 548,573.88 and 236,409.19 is: 326,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,668.85 : 548,573.88 = 236,409.19 : x
  2. Step 2: Convert to fraction form
    397,668.85/548,573.88 = 236,409.19/x
  3. Step 3: Cross multiply
    397,668.85x = 548,573.88 × 236,409.19
  4. Step 4: Simplify right side
    397,668.85x = 129,687,906,141.06
  5. Step 5: Solve for x
    x = 129,687,906,141.06/397,668.85
  6. Step 6: Final answer
    x = 326,120.36

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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.