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Finding the Fourth Proportional to 484,695, 668,443.64 and 303,423.44

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Solution

The fourth proportional to 484,695, 668,443.64 and 303,423.44 is: 418,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,695 : 668,443.64 = 303,423.44 : x
  2. Step 2: Convert to fraction form
    484,695/668,443.64 = 303,423.44/x
  3. Step 3: Cross multiply
    484,695x = 668,443.64 × 303,423.44
  4. Step 4: Simplify right side
    484,695x = 202,821,463,835.59
  5. Step 5: Solve for x
    x = 202,821,463,835.59/484,695
  6. Step 6: Final answer
    x = 418,451.74

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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.