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Finding the Fourth Proportional to 619,311.94, 854,657.66 and 343,675.56

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Solution

The fourth proportional to 619,311.94, 854,657.66 and 343,675.56 is: 474,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,311.94 : 854,657.66 = 343,675.56 : x
  2. Step 2: Convert to fraction form
    619,311.94/854,657.66 = 343,675.56/x
  3. Step 3: Cross multiply
    619,311.94x = 854,657.66 × 343,675.56
  4. Step 4: Simplify right side
    619,311.94x = 293,724,949,908.79
  5. Step 5: Solve for x
    x = 293,724,949,908.79/619,311.94
  6. Step 6: Final answer
    x = 474,276.26

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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.