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Finding the Fourth Proportional to 502,922.79, 694,019.61 and 276,568.29

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Solution

The fourth proportional to 502,922.79, 694,019.61 and 276,568.29 is: 381,656.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,922.79 : 694,019.61 = 276,568.29 : x
  2. Step 2: Convert to fraction form
    502,922.79/694,019.61 = 276,568.29/x
  3. Step 3: Cross multiply
    502,922.79x = 694,019.61 × 276,568.29
  4. Step 4: Simplify right side
    502,922.79x = 191,943,816,764.17
  5. Step 5: Solve for x
    x = 191,943,816,764.17/502,922.79
  6. Step 6: Final answer
    x = 381,656.63

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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.