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Finding the Fourth Proportional to 352,601.01, 486,520.97 and 209,405.97

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Solution

The fourth proportional to 352,601.01, 486,520.97 and 209,405.97 is: 288,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,601.01 : 486,520.97 = 209,405.97 : x
  2. Step 2: Convert to fraction form
    352,601.01/486,520.97 = 209,405.97/x
  3. Step 3: Cross multiply
    352,601.01x = 486,520.97 × 209,405.97
  4. Step 4: Simplify right side
    352,601.01x = 101,880,394,601.16
  5. Step 5: Solve for x
    x = 101,880,394,601.16/352,601.01
  6. Step 6: Final answer
    x = 288,939.60

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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.