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Finding the Fourth Proportional to 308,639.36, 462,955.74 and 234,216.56

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Solution

The fourth proportional to 308,639.36, 462,955.74 and 234,216.56 is: 351,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,639.36 : 462,955.74 = 234,216.56 : x
  2. Step 2: Convert to fraction form
    308,639.36/462,955.74 = 234,216.56/x
  3. Step 3: Cross multiply
    308,639.36x = 462,955.74 × 234,216.56
  4. Step 4: Simplify right side
    308,639.36x = 108,431,900,855.05
  5. Step 5: Solve for x
    x = 108,431,900,855.05/308,639.36
  6. Step 6: Final answer
    x = 351,322.34

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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.