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Finding the Fourth Proportional to 469,891.62, 648,444.15 and 255,029.80

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Solution

The fourth proportional to 469,891.62, 648,444.15 and 255,029.80 is: 351,937.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,891.62 : 648,444.15 = 255,029.80 : x
  2. Step 2: Convert to fraction form
    469,891.62/648,444.15 = 255,029.80/x
  3. Step 3: Cross multiply
    469,891.62x = 648,444.15 × 255,029.80
  4. Step 4: Simplify right side
    469,891.62x = 165,372,581,885.67
  5. Step 5: Solve for x
    x = 165,372,581,885.67/469,891.62
  6. Step 6: Final answer
    x = 351,937.71

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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.