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Finding the Fourth Proportional to 9,318,794.46, 13,978,178.73 and 2,929,605.18

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Solution

The fourth proportional to 9,318,794.46, 13,978,178.73 and 2,929,605.18 is: 4,394,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318,794.46 : 13,978,178.73 = 2,929,605.18 : x
  2. Step 2: Convert to fraction form
    9,318,794.46/13,978,178.73 = 2,929,605.18/x
  3. Step 3: Cross multiply
    9,318,794.46x = 13,978,178.73 × 2,929,605.18
  4. Step 4: Simplify right side
    9,318,794.46x = 40,950,544,814,373.83
  5. Step 5: Solve for x
    x = 40,950,544,814,373.83/9,318,794.46
  6. Step 6: Final answer
    x = 4,394,403.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.