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Finding the Fourth Proportional to 587,334, 810,520.92 and 319,062

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Solution

The fourth proportional to 587,334, 810,520.92 and 319,062 is: 440,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,334 : 810,520.92 = 319,062 : x
  2. Step 2: Convert to fraction form
    587,334/810,520.92 = 319,062/x
  3. Step 3: Cross multiply
    587,334x = 810,520.92 × 319,062
  4. Step 4: Simplify right side
    587,334x = 258,606,425,777.04
  5. Step 5: Solve for x
    x = 258,606,425,777.04/587,334
  6. Step 6: Final answer
    x = 440,305.56

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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.