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Finding the Fourth Proportional to 418,329.78, 577,299.57 and 227,343.18

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Solution

The fourth proportional to 418,329.78, 577,299.57 and 227,343.18 is: 313,736.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,329.78 : 577,299.57 = 227,343.18 : x
  2. Step 2: Convert to fraction form
    418,329.78/577,299.57 = 227,343.18/x
  3. Step 3: Cross multiply
    418,329.78x = 577,299.57 × 227,343.18
  4. Step 4: Simplify right side
    418,329.78x = 131,245,120,056.43
  5. Step 5: Solve for x
    x = 131,245,120,056.43/418,329.78
  6. Step 6: Final answer
    x = 313,736.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.