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Finding the Fourth Proportional to 534,447.89, 737,332.89 and 305,017.92

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Solution

The fourth proportional to 534,447.89, 737,332.89 and 305,017.92 is: 420,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,447.89 : 737,332.89 = 305,017.92 : x
  2. Step 2: Convert to fraction form
    534,447.89/737,332.89 = 305,017.92/x
  3. Step 3: Cross multiply
    534,447.89x = 737,332.89 × 305,017.92
  4. Step 4: Simplify right side
    534,447.89x = 224,899,743,311.57
  5. Step 5: Solve for x
    x = 224,899,743,311.57/534,447.89
  6. Step 6: Final answer
    x = 420,807.62

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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.