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Finding the Fourth Proportional to 363,783.33, 501,840.45 and 243,086.49

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Solution

The fourth proportional to 363,783.33, 501,840.45 and 243,086.49 is: 335,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,783.33 : 501,840.45 = 243,086.49 : x
  2. Step 2: Convert to fraction form
    363,783.33/501,840.45 = 243,086.49/x
  3. Step 3: Cross multiply
    363,783.33x = 501,840.45 × 243,086.49
  4. Step 4: Simplify right side
    363,783.33x = 121,990,633,530.52
  5. Step 5: Solve for x
    x = 121,990,633,530.52/363,783.33
  6. Step 6: Final answer
    x = 335,338.71

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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.