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Finding the Fourth Proportional to 327,228.20, 491,303.10 and 202,812.20

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Solution

The fourth proportional to 327,228.20, 491,303.10 and 202,812.20 is: 304,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,228.20 : 491,303.10 = 202,812.20 : x
  2. Step 2: Convert to fraction form
    327,228.20/491,303.10 = 202,812.20/x
  3. Step 3: Cross multiply
    327,228.20x = 491,303.10 × 202,812.20
  4. Step 4: Simplify right side
    327,228.20x = 99,642,262,577.82
  5. Step 5: Solve for x
    x = 99,642,262,577.82/327,228.20
  6. Step 6: Final answer
    x = 304,503.90

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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.