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Finding the Fourth Proportional to 502,674.66, 693,673.47 and 276,318.54

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Solution

The fourth proportional to 502,674.66, 693,673.47 and 276,318.54 is: 381,309.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,674.66 : 693,673.47 = 276,318.54 : x
  2. Step 2: Convert to fraction form
    502,674.66/693,673.47 = 276,318.54/x
  3. Step 3: Cross multiply
    502,674.66x = 693,673.47 × 276,318.54
  4. Step 4: Simplify right side
    502,674.66x = 191,674,840,467.13
  5. Step 5: Solve for x
    x = 191,674,840,467.13/502,674.66
  6. Step 6: Final answer
    x = 381,309.93

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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.