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Finding the Fourth Proportional to 469,903.83, 648,449.94 and 255,039.28

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Solution

The fourth proportional to 469,903.83, 648,449.94 and 255,039.28 is: 351,944.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,903.83 : 648,449.94 = 255,039.28 : x
  2. Step 2: Convert to fraction form
    469,903.83/648,449.94 = 255,039.28/x
  3. Step 3: Cross multiply
    469,903.83x = 648,449.94 × 255,039.28
  4. Step 4: Simplify right side
    469,903.83x = 165,380,207,361.85
  5. Step 5: Solve for x
    x = 165,380,207,361.85/469,903.83
  6. Step 6: Final answer
    x = 351,944.79

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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.