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Finding the Fourth Proportional to 362,481.13, 500,289.46 and 209,498.20

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Solution

The fourth proportional to 362,481.13, 500,289.46 and 209,498.20 is: 289,145.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,481.13 : 500,289.46 = 209,498.20 : x
  2. Step 2: Convert to fraction form
    362,481.13/500,289.46 = 209,498.20/x
  3. Step 3: Cross multiply
    362,481.13x = 500,289.46 × 209,498.20
  4. Step 4: Simplify right side
    362,481.13x = 104,809,740,752.93
  5. Step 5: Solve for x
    x = 104,809,740,752.93/362,481.13
  6. Step 6: Final answer
    x = 289,145.37

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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.