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Finding the Fourth Proportional to 619,701.18, 854,992.71 and 347,729.10

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Solution

The fourth proportional to 619,701.18, 854,992.71 and 347,729.10 is: 479,756.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,701.18 : 854,992.71 = 347,729.10 : x
  2. Step 2: Convert to fraction form
    619,701.18/854,992.71 = 347,729.10/x
  3. Step 3: Cross multiply
    619,701.18x = 854,992.71 × 347,729.10
  4. Step 4: Simplify right side
    619,701.18x = 297,305,845,554.86
  5. Step 5: Solve for x
    x = 297,305,845,554.86/619,701.18
  6. Step 6: Final answer
    x = 479,756.78

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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.