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Finding the Fourth Proportional to 335,783.40, 503,237.70 and 135,940.20

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Solution

The fourth proportional to 335,783.40, 503,237.70 and 135,940.20 is: 203,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,783.40 : 503,237.70 = 135,940.20 : x
  2. Step 2: Convert to fraction form
    335,783.40/503,237.70 = 135,940.20/x
  3. Step 3: Cross multiply
    335,783.40x = 503,237.70 × 135,940.20
  4. Step 4: Simplify right side
    335,783.40x = 68,410,233,585.54
  5. Step 5: Solve for x
    x = 68,410,233,585.54/335,783.40
  6. Step 6: Final answer
    x = 203,733.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.