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Finding the Fourth Proportional to 322,428.40, 483,059.40 and 275,772.40

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Solution

The fourth proportional to 322,428.40, 483,059.40 and 275,772.40 is: 413,159.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,428.40 : 483,059.40 = 275,772.40 : x
  2. Step 2: Convert to fraction form
    322,428.40/483,059.40 = 275,772.40/x
  3. Step 3: Cross multiply
    322,428.40x = 483,059.40 × 275,772.40
  4. Step 4: Simplify right side
    322,428.40x = 133,214,450,080.56
  5. Step 5: Solve for x
    x = 133,214,450,080.56/322,428.40
  6. Step 6: Final answer
    x = 413,159.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.