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Finding the Fourth Proportional to 469,993.56, 648,591.84 and 255,133.68

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Solution

The fourth proportional to 469,993.56, 648,591.84 and 255,133.68 is: 352,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,993.56 : 648,591.84 = 255,133.68 : x
  2. Step 2: Convert to fraction form
    469,993.56/648,591.84 = 255,133.68/x
  3. Step 3: Cross multiply
    469,993.56x = 648,591.84 × 255,133.68
  4. Step 4: Simplify right side
    469,993.56x = 165,477,622,957.17
  5. Step 5: Solve for x
    x = 165,477,622,957.17/469,993.56
  6. Step 6: Final answer
    x = 352,084.87

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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.