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Finding the Fourth Proportional to 501,363.44, 691,887.12 and 275,004.08

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Solution

The fourth proportional to 501,363.44, 691,887.12 and 275,004.08 is: 379,508.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,363.44 : 691,887.12 = 275,004.08 : x
  2. Step 2: Convert to fraction form
    501,363.44/691,887.12 = 275,004.08/x
  3. Step 3: Cross multiply
    501,363.44x = 691,887.12 × 275,004.08
  4. Step 4: Simplify right side
    501,363.44x = 190,271,780,899.45
  5. Step 5: Solve for x
    x = 190,271,780,899.45/501,363.44
  6. Step 6: Final answer
    x = 379,508.69

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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.