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Finding the Fourth Proportional to 625,684.84, 863,489.30 and 353,755.35

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Solution

The fourth proportional to 625,684.84, 863,489.30 and 353,755.35 is: 488,207.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,684.84 : 863,489.30 = 353,755.35 : x
  2. Step 2: Convert to fraction form
    625,684.84/863,489.30 = 353,755.35/x
  3. Step 3: Cross multiply
    625,684.84x = 863,489.30 × 353,755.35
  4. Step 4: Simplify right side
    625,684.84x = 305,463,957,773.98
  5. Step 5: Solve for x
    x = 305,463,957,773.98/625,684.84
  6. Step 6: Final answer
    x = 488,207.38

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1.5x scale

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.