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Finding the Fourth Proportional to 625,512.57, 863,197.96 and 353,570.89

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Solution

The fourth proportional to 625,512.57, 863,197.96 and 353,570.89 is: 487,922.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,512.57 : 863,197.96 = 353,570.89 : x
  2. Step 2: Convert to fraction form
    625,512.57/863,197.96 = 353,570.89/x
  3. Step 3: Cross multiply
    625,512.57x = 863,197.96 × 353,570.89
  4. Step 4: Simplify right side
    625,512.57x = 305,201,670,963.38
  5. Step 5: Solve for x
    x = 305,201,670,963.38/625,512.57
  6. Step 6: Final answer
    x = 487,922.52

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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.