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Finding the Fourth Proportional to 308,059.29, 424,845.51 and 256,546.94

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Solution

The fourth proportional to 308,059.29, 424,845.51 and 256,546.94 is: 353,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,059.29 : 424,845.51 = 256,546.94 : x
  2. Step 2: Convert to fraction form
    308,059.29/424,845.51 = 256,546.94/x
  3. Step 3: Cross multiply
    308,059.29x = 424,845.51 × 256,546.94
  4. Step 4: Simplify right side
    308,059.29x = 108,992,813,439.01
  5. Step 5: Solve for x
    x = 108,992,813,439.01/308,059.29
  6. Step 6: Final answer
    x = 353,804.66

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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.