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Finding the Fourth Proportional to 482,126.45, 723,212.73 and 397,730.12

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Solution

The fourth proportional to 482,126.45, 723,212.73 and 397,730.12 is: 596,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,126.45 : 723,212.73 = 397,730.12 : x
  2. Step 2: Convert to fraction form
    482,126.45/723,212.73 = 397,730.12/x
  3. Step 3: Cross multiply
    482,126.45x = 723,212.73 × 397,730.12
  4. Step 4: Simplify right side
    482,126.45x = 287,643,485,888.43
  5. Step 5: Solve for x
    x = 287,643,485,888.43/482,126.45
  6. Step 6: Final answer
    x = 596,614.20

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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.