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Finding the Fourth Proportional to 301,678.38, 415,973.79 and 247,060.14

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Solution

The fourth proportional to 301,678.38, 415,973.79 and 247,060.14 is: 340,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,678.38 : 415,973.79 = 247,060.14 : x
  2. Step 2: Convert to fraction form
    301,678.38/415,973.79 = 247,060.14/x
  3. Step 3: Cross multiply
    301,678.38x = 415,973.79 × 247,060.14
  4. Step 4: Simplify right side
    301,678.38x = 102,770,542,793.73
  5. Step 5: Solve for x
    x = 102,770,542,793.73/301,678.38
  6. Step 6: Final answer
    x = 340,662.60

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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.