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Finding the Fourth Proportional to 608,835.28, 840,171 and 336,898.48

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Solution

The fourth proportional to 608,835.28, 840,171 and 336,898.48 is: 464,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,835.28 : 840,171 = 336,898.48 : x
  2. Step 2: Convert to fraction form
    608,835.28/840,171 = 336,898.48/x
  3. Step 3: Cross multiply
    608,835.28x = 840,171 × 336,898.48
  4. Step 4: Simplify right side
    608,835.28x = 283,052,332,840.08
  5. Step 5: Solve for x
    x = 283,052,332,840.08/608,835.28
  6. Step 6: Final answer
    x = 464,907.90

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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.