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Finding the Fourth Proportional to 479,953.21, 662,331.48 and 262,162.03

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Solution

The fourth proportional to 479,953.21, 662,331.48 and 262,162.03 is: 361,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,953.21 : 662,331.48 = 262,162.03 : x
  2. Step 2: Convert to fraction form
    479,953.21/662,331.48 = 262,162.03/x
  3. Step 3: Cross multiply
    479,953.21x = 662,331.48 × 262,162.03
  4. Step 4: Simplify right side
    479,953.21x = 173,638,165,329.70
  5. Step 5: Solve for x
    x = 173,638,165,329.70/479,953.21
  6. Step 6: Final answer
    x = 361,781.44

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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.