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Finding the Fourth Proportional to 625,758.12, 863,552.82 and 367,645.86

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Solution

The fourth proportional to 625,758.12, 863,552.82 and 367,645.86 is: 507,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,758.12 : 863,552.82 = 367,645.86 : x
  2. Step 2: Convert to fraction form
    625,758.12/863,552.82 = 367,645.86/x
  3. Step 3: Cross multiply
    625,758.12x = 863,552.82 × 367,645.86
  4. Step 4: Simplify right side
    625,758.12x = 317,481,619,164.33
  5. Step 5: Solve for x
    x = 317,481,619,164.33/625,758.12
  6. Step 6: Final answer
    x = 507,355.17

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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.