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Finding the Fourth Proportional to 469,903.67, 648,449.72 and 255,039.12

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Solution

The fourth proportional to 469,903.67, 648,449.72 and 255,039.12 is: 351,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,903.67 : 648,449.72 = 255,039.12 : x
  2. Step 2: Convert to fraction form
    469,903.67/648,449.72 = 255,039.12/x
  3. Step 3: Cross multiply
    469,903.67x = 648,449.72 × 255,039.12
  4. Step 4: Simplify right side
    469,903.67x = 165,380,044,677.85
  5. Step 5: Solve for x
    x = 165,380,044,677.85/469,903.67
  6. Step 6: Final answer
    x = 351,944.57

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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.