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Finding the Fourth Proportional to 336,589.92, 464,358.50 and 215,709

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Solution

The fourth proportional to 336,589.92, 464,358.50 and 215,709 is: 297,591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,589.92 : 464,358.50 = 215,709 : x
  2. Step 2: Convert to fraction form
    336,589.92/464,358.50 = 215,709/x
  3. Step 3: Cross multiply
    336,589.92x = 464,358.50 × 215,709
  4. Step 4: Simplify right side
    336,589.92x = 100,166,307,676.50
  5. Step 5: Solve for x
    x = 100,166,307,676.50/336,589.92
  6. Step 6: Final answer
    x = 297,591.53

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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.