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Finding the Fourth Proportional to 424,601.92, 636,048 and 196,576.12

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Solution

The fourth proportional to 424,601.92, 636,048 and 196,576.12 is: 294,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,601.92 : 636,048 = 196,576.12 : x
  2. Step 2: Convert to fraction form
    424,601.92/636,048 = 196,576.12/x
  3. Step 3: Cross multiply
    424,601.92x = 636,048 × 196,576.12
  4. Step 4: Simplify right side
    424,601.92x = 125,031,847,973.76
  5. Step 5: Solve for x
    x = 125,031,847,973.76/424,601.92
  6. Step 6: Final answer
    x = 294,468.40

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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.