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Finding the Fourth Proportional to 502,674.92, 693,673.80 and 276,318.80

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Solution

The fourth proportional to 502,674.92, 693,673.80 and 276,318.80 is: 381,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,674.92 : 693,673.80 = 276,318.80 : x
  2. Step 2: Convert to fraction form
    502,674.92/693,673.80 = 276,318.80/x
  3. Step 3: Cross multiply
    502,674.92x = 693,673.80 × 276,318.80
  4. Step 4: Simplify right side
    502,674.92x = 191,675,112,007.44
  5. Step 5: Solve for x
    x = 191,675,112,007.44/502,674.92
  6. Step 6: Final answer
    x = 381,310.28

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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.