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Finding the Fourth Proportional to 625,763.55, 863,548.48 and 353,884.83

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Solution

The fourth proportional to 625,763.55, 863,548.48 and 353,884.83 is: 488,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,763.55 : 863,548.48 = 353,884.83 : x
  2. Step 2: Convert to fraction form
    625,763.55/863,548.48 = 353,884.83/x
  3. Step 3: Cross multiply
    625,763.55x = 863,548.48 × 353,884.83
  4. Step 4: Simplify right side
    625,763.55x = 305,596,704,245.61
  5. Step 5: Solve for x
    x = 305,596,704,245.61/625,763.55
  6. Step 6: Final answer
    x = 488,358.11

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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.