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Finding the Fourth Proportional to 625,535.78, 863,230.01 and 353,594.12

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Solution

The fourth proportional to 625,535.78, 863,230.01 and 353,594.12 is: 487,954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,535.78 : 863,230.01 = 353,594.12 : x
  2. Step 2: Convert to fraction form
    625,535.78/863,230.01 = 353,594.12/x
  3. Step 3: Cross multiply
    625,535.78x = 863,230.01 × 353,594.12
  4. Step 4: Simplify right side
    625,535.78x = 305,233,049,659.42
  5. Step 5: Solve for x
    x = 305,233,049,659.42/625,535.78
  6. Step 6: Final answer
    x = 487,954.59

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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.