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Finding the Fourth Proportional to 469,884.34, 648,446.61 and 255,026.98

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Solution

The fourth proportional to 469,884.34, 648,446.61 and 255,026.98 is: 351,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,884.34 : 648,446.61 = 255,026.98 : x
  2. Step 2: Convert to fraction form
    469,884.34/648,446.61 = 255,026.98/x
  3. Step 3: Cross multiply
    469,884.34x = 648,446.61 × 255,026.98
  4. Step 4: Simplify right side
    469,884.34x = 165,371,380,639.54
  5. Step 5: Solve for x
    x = 165,371,380,639.54/469,884.34
  6. Step 6: Final answer
    x = 351,940.61

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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.