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Finding the Fourth Proportional to 456,595.12, 629,958.42 and 275,362.48

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Solution

The fourth proportional to 456,595.12, 629,958.42 and 275,362.48 is: 379,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,595.12 : 629,958.42 = 275,362.48 : x
  2. Step 2: Convert to fraction form
    456,595.12/629,958.42 = 275,362.48/x
  3. Step 3: Cross multiply
    456,595.12x = 629,958.42 × 275,362.48
  4. Step 4: Simplify right side
    456,595.12x = 173,466,912,828.08
  5. Step 5: Solve for x
    x = 173,466,912,828.08/456,595.12
  6. Step 6: Final answer
    x = 379,914.08

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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.