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Finding the Fourth Proportional to 451,751.53, 623,436.66 and 270,428.37

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Solution

The fourth proportional to 451,751.53, 623,436.66 and 270,428.37 is: 373,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,751.53 : 623,436.66 = 270,428.37 : x
  2. Step 2: Convert to fraction form
    451,751.53/623,436.66 = 270,428.37/x
  3. Step 3: Cross multiply
    451,751.53x = 623,436.66 × 270,428.37
  4. Step 4: Simplify right side
    451,751.53x = 168,594,958,409.90
  5. Step 5: Solve for x
    x = 168,594,958,409.90/451,751.53
  6. Step 6: Final answer
    x = 373,202.85

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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.