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Finding the Fourth Proportional to 269,382.83, 371,988.61 and 256,621.69

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Solution

The fourth proportional to 269,382.83, 371,988.61 and 256,621.69 is: 354,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,382.83 : 371,988.61 = 256,621.69 : x
  2. Step 2: Convert to fraction form
    269,382.83/371,988.61 = 256,621.69/x
  3. Step 3: Cross multiply
    269,382.83x = 371,988.61 × 256,621.69
  4. Step 4: Simplify right side
    269,382.83x = 95,460,344,187.43
  5. Step 5: Solve for x
    x = 95,460,344,187.43/269,382.83
  6. Step 6: Final answer
    x = 354,366.84

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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.