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Finding the Fourth Proportional to 502,866.36, 693,955.58 and 276,511.86

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Solution

The fourth proportional to 502,866.36, 693,955.58 and 276,511.86 is: 381,586.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,866.36 : 693,955.58 = 276,511.86 : x
  2. Step 2: Convert to fraction form
    502,866.36/693,955.58 = 276,511.86/x
  3. Step 3: Cross multiply
    502,866.36x = 693,955.58 × 276,511.86
  4. Step 4: Simplify right side
    502,866.36x = 191,886,948,183.18
  5. Step 5: Solve for x
    x = 191,886,948,183.18/502,866.36
  6. Step 6: Final answer
    x = 381,586.37

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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.