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Finding the Fourth Proportional to 502,751.28, 693,779.04 and 276,395.04

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Solution

The fourth proportional to 502,751.28, 693,779.04 and 276,395.04 is: 381,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,751.28 : 693,779.04 = 276,395.04 : x
  2. Step 2: Convert to fraction form
    502,751.28/693,779.04 = 276,395.04/x
  3. Step 3: Cross multiply
    502,751.28x = 693,779.04 × 276,395.04
  4. Step 4: Simplify right side
    502,751.28x = 191,757,085,511.96
  5. Step 5: Solve for x
    x = 191,757,085,511.96/502,751.28
  6. Step 6: Final answer
    x = 381,415.41

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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.