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Finding the Fourth Proportional to 462,636.48, 638,367.84 and 261,359.04

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Solution

The fourth proportional to 462,636.48, 638,367.84 and 261,359.04 is: 360,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,636.48 : 638,367.84 = 261,359.04 : x
  2. Step 2: Convert to fraction form
    462,636.48/638,367.84 = 261,359.04/x
  3. Step 3: Cross multiply
    462,636.48x = 638,367.84 × 261,359.04
  4. Step 4: Simplify right side
    462,636.48x = 166,843,205,829.27
  5. Step 5: Solve for x
    x = 166,843,205,829.27/462,636.48
  6. Step 6: Final answer
    x = 360,635.65

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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.