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Finding the Fourth Proportional to 474,274.78, 711,359.78 and 119,288.94

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Solution

The fourth proportional to 474,274.78, 711,359.78 and 119,288.94 is: 178,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,274.78 : 711,359.78 = 119,288.94 : x
  2. Step 2: Convert to fraction form
    474,274.78/711,359.78 = 119,288.94/x
  3. Step 3: Cross multiply
    474,274.78x = 711,359.78 × 119,288.94
  4. Step 4: Simplify right side
    474,274.78x = 84,857,353,518.39
  5. Step 5: Solve for x
    x = 84,857,353,518.39/474,274.78
  6. Step 6: Final answer
    x = 178,920.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.