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Finding the Fourth Proportional to 325,965.42, 488,189.97 and 316,996.38

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Solution

The fourth proportional to 325,965.42, 488,189.97 and 316,996.38 is: 474,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,965.42 : 488,189.97 = 316,996.38 : x
  2. Step 2: Convert to fraction form
    325,965.42/488,189.97 = 316,996.38/x
  3. Step 3: Cross multiply
    325,965.42x = 488,189.97 × 316,996.38
  4. Step 4: Simplify right side
    325,965.42x = 154,754,453,242.31
  5. Step 5: Solve for x
    x = 154,754,453,242.31/325,965.42
  6. Step 6: Final answer
    x = 474,757.27

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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.