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Finding the Fourth Proportional to 625,511.57, 863,196.58 and 353,569.89

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Solution

The fourth proportional to 625,511.57, 863,196.58 and 353,569.89 is: 487,921.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,511.57 : 863,196.58 = 353,569.89 : x
  2. Step 2: Convert to fraction form
    625,511.57/863,196.58 = 353,569.89/x
  3. Step 3: Cross multiply
    625,511.57x = 863,196.58 × 353,569.89
  4. Step 4: Simplify right side
    625,511.57x = 305,200,323,517.93
  5. Step 5: Solve for x
    x = 305,200,323,517.93/625,511.57
  6. Step 6: Final answer
    x = 487,921.15

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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.