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Finding the Fourth Proportional to 625,781.02, 863,577 and 339,300.64

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Solution

The fourth proportional to 625,781.02, 863,577 and 339,300.64 is: 468,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,781.02 : 863,577 = 339,300.64 : x
  2. Step 2: Convert to fraction form
    625,781.02/863,577 = 339,300.64/x
  3. Step 3: Cross multiply
    625,781.02x = 863,577 × 339,300.64
  4. Step 4: Simplify right side
    625,781.02x = 293,012,228,789.28
  5. Step 5: Solve for x
    x = 293,012,228,789.28/625,781.02
  6. Step 6: Final answer
    x = 468,234.45

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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.