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Finding the Fourth Proportional to 501,514.60, 692,090.98 and 275,161.72

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Solution

The fourth proportional to 501,514.60, 692,090.98 and 275,161.72 is: 379,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,514.60 : 692,090.98 = 275,161.72 : x
  2. Step 2: Convert to fraction form
    501,514.60/692,090.98 = 275,161.72/x
  3. Step 3: Cross multiply
    501,514.60x = 692,090.98 × 275,161.72
  4. Step 4: Simplify right side
    501,514.60x = 190,436,944,453.29
  5. Step 5: Solve for x
    x = 190,436,944,453.29/501,514.60
  6. Step 6: Final answer
    x = 379,723.63

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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.