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Finding the Fourth Proportional to 325,921.80, 488,882.70 and 302,302.20

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Solution

The fourth proportional to 325,921.80, 488,882.70 and 302,302.20 is: 453,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,921.80 : 488,882.70 = 302,302.20 : x
  2. Step 2: Convert to fraction form
    325,921.80/488,882.70 = 302,302.20/x
  3. Step 3: Cross multiply
    325,921.80x = 488,882.70 × 302,302.20
  4. Step 4: Simplify right side
    325,921.80x = 147,790,315,751.94
  5. Step 5: Solve for x
    x = 147,790,315,751.94/325,921.80
  6. Step 6: Final answer
    x = 453,453.30

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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.