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Finding the Fourth Proportional to 578,540.75, 797,644.33 and 449,259.89

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Solution

The fourth proportional to 578,540.75, 797,644.33 and 449,259.89 is: 619,402.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,540.75 : 797,644.33 = 449,259.89 : x
  2. Step 2: Convert to fraction form
    578,540.75/797,644.33 = 449,259.89/x
  3. Step 3: Cross multiply
    578,540.75x = 797,644.33 × 449,259.89
  4. Step 4: Simplify right side
    578,540.75x = 358,349,598,843.55
  5. Step 5: Solve for x
    x = 358,349,598,843.55/578,540.75
  6. Step 6: Final answer
    x = 619,402.53

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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.