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Finding the Fourth Proportional to 625,695.16, 863,448.06 and 353,758.36

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Solution

The fourth proportional to 625,695.16, 863,448.06 and 353,758.36 is: 488,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,695.16 : 863,448.06 = 353,758.36 : x
  2. Step 2: Convert to fraction form
    625,695.16/863,448.06 = 353,758.36/x
  3. Step 3: Cross multiply
    625,695.16x = 863,448.06 × 353,758.36
  4. Step 4: Simplify right side
    625,695.16x = 305,451,969,650.78
  5. Step 5: Solve for x
    x = 305,451,969,650.78/625,695.16
  6. Step 6: Final answer
    x = 488,180.17

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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.