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Finding the Fourth Proportional to 301,318.38, 415,783.53 and 178,791.30

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Solution

The fourth proportional to 301,318.38, 415,783.53 and 178,791.30 is: 246,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,318.38 : 415,783.53 = 178,791.30 : x
  2. Step 2: Convert to fraction form
    301,318.38/415,783.53 = 178,791.30/x
  3. Step 3: Cross multiply
    301,318.38x = 415,783.53 × 178,791.30
  4. Step 4: Simplify right side
    301,318.38x = 74,338,477,847.29
  5. Step 5: Solve for x
    x = 74,338,477,847.29/301,318.38
  6. Step 6: Final answer
    x = 246,710.73

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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.