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Finding the Fourth Proportional to 543,440.30, 809,529.05 and 534,497.90

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Solution

The fourth proportional to 543,440.30, 809,529.05 and 534,497.90 is: 796,208.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,440.30 : 809,529.05 = 534,497.90 : x
  2. Step 2: Convert to fraction form
    543,440.30/809,529.05 = 534,497.90/x
  3. Step 3: Cross multiply
    543,440.30x = 809,529.05 × 534,497.90
  4. Step 4: Simplify right side
    543,440.30x = 432,691,577,214.00
  5. Step 5: Solve for x
    x = 432,691,577,214.00/543,440.30
  6. Step 6: Final answer
    x = 796,208.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.