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Finding the Fourth Proportional to 700,994.55, 967,372.98 and 378,704.57

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Solution

The fourth proportional to 700,994.55, 967,372.98 and 378,704.57 is: 522,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,994.55 : 967,372.98 = 378,704.57 : x
  2. Step 2: Convert to fraction form
    700,994.55/967,372.98 = 378,704.57/x
  3. Step 3: Cross multiply
    700,994.55x = 967,372.98 × 378,704.57
  4. Step 4: Simplify right side
    700,994.55x = 366,348,562,163.51
  5. Step 5: Solve for x
    x = 366,348,562,163.51/700,994.55
  6. Step 6: Final answer
    x = 522,612.57

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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.