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Finding the Fourth Proportional to 361,997.09, 499,628.69 and 209,060.18

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Solution

The fourth proportional to 361,997.09, 499,628.69 and 209,060.18 is: 288,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,997.09 : 499,628.69 = 209,060.18 : x
  2. Step 2: Convert to fraction form
    361,997.09/499,628.69 = 209,060.18/x
  3. Step 3: Cross multiply
    361,997.09x = 499,628.69 × 209,060.18
  4. Step 4: Simplify right side
    361,997.09x = 104,452,460,321.12
  5. Step 5: Solve for x
    x = 104,452,460,321.12/361,997.09
  6. Step 6: Final answer
    x = 288,545.03

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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.