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Finding the Fourth Proportional to 308,377.50, 460,078.44 and 274,719.57

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Solution

The fourth proportional to 308,377.50, 460,078.44 and 274,719.57 is: 409,863.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,377.50 : 460,078.44 = 274,719.57 : x
  2. Step 2: Convert to fraction form
    308,377.50/460,078.44 = 274,719.57/x
  3. Step 3: Cross multiply
    308,377.50x = 460,078.44 × 274,719.57
  4. Step 4: Simplify right side
    308,377.50x = 126,392,551,203.07
  5. Step 5: Solve for x
    x = 126,392,551,203.07/308,377.50
  6. Step 6: Final answer
    x = 409,863.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.