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Finding the Fourth Proportional to 302,791.50, 417,832.20 and 181,860.84

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Solution

The fourth proportional to 302,791.50, 417,832.20 and 181,860.84 is: 250,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,791.50 : 417,832.20 = 181,860.84 : x
  2. Step 2: Convert to fraction form
    302,791.50/417,832.20 = 181,860.84/x
  3. Step 3: Cross multiply
    302,791.50x = 417,832.20 × 181,860.84
  4. Step 4: Simplify right side
    302,791.50x = 75,987,314,871.05
  5. Step 5: Solve for x
    x = 75,987,314,871.05/302,791.50
  6. Step 6: Final answer
    x = 250,955.90

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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.