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Finding the Fourth Proportional to 322,308.20, 482,798.00 and 188,783.64

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Solution

The fourth proportional to 322,308.20, 482,798.00 and 188,783.64 is: 282,786.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,308.20 : 482,798.00 = 188,783.64 : x
  2. Step 2: Convert to fraction form
    322,308.20/482,798.00 = 188,783.64/x
  3. Step 3: Cross multiply
    322,308.20x = 482,798.00 × 188,783.64
  4. Step 4: Simplify right side
    322,308.20x = 91,144,362,880.80
  5. Step 5: Solve for x
    x = 91,144,362,880.80/322,308.20
  6. Step 6: Final answer
    x = 282,786.37

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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.