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Finding the Fourth Proportional to 619,586.64, 854,994.12 and 343,930.32

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Solution

The fourth proportional to 619,586.64, 854,994.12 and 343,930.32 is: 474,604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,586.64 : 854,994.12 = 343,930.32 : x
  2. Step 2: Convert to fraction form
    619,586.64/854,994.12 = 343,930.32/x
  3. Step 3: Cross multiply
    619,586.64x = 854,994.12 × 343,930.32
  4. Step 4: Simplify right side
    619,586.64x = 294,058,401,289.72
  5. Step 5: Solve for x
    x = 294,058,401,289.72/619,586.64
  6. Step 6: Final answer
    x = 474,604.17

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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.