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Finding the Fourth Proportional to 619,482.86, 854,899.50 and 347,570.42

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Solution

The fourth proportional to 619,482.86, 854,899.50 and 347,570.42 is: 479,654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,482.86 : 854,899.50 = 347,570.42 : x
  2. Step 2: Convert to fraction form
    619,482.86/854,899.50 = 347,570.42/x
  3. Step 3: Cross multiply
    619,482.86x = 854,899.50 × 347,570.42
  4. Step 4: Simplify right side
    619,482.86x = 297,137,773,998.29
  5. Step 5: Solve for x
    x = 297,137,773,998.29/619,482.86
  6. Step 6: Final answer
    x = 479,654.55

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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.