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Finding the Fourth Proportional to 301,342.38, 415,816.56 and 178,815.30

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Solution

The fourth proportional to 301,342.38, 415,816.56 and 178,815.30 is: 246,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,342.38 : 415,816.56 = 178,815.30 : x
  2. Step 2: Convert to fraction form
    301,342.38/415,816.56 = 178,815.30/x
  3. Step 3: Cross multiply
    301,342.38x = 415,816.56 × 178,815.30
  4. Step 4: Simplify right side
    301,342.38x = 74,354,362,921.37
  5. Step 5: Solve for x
    x = 74,354,362,921.37/301,342.38
  6. Step 6: Final answer
    x = 246,743.80

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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.