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Finding the Fourth Proportional to 688,556.37, 950,147.31 and 382,613.37

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Solution

The fourth proportional to 688,556.37, 950,147.31 and 382,613.37 is: 527,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,556.37 : 950,147.31 = 382,613.37 : x
  2. Step 2: Convert to fraction form
    688,556.37/950,147.31 = 382,613.37/x
  3. Step 3: Cross multiply
    688,556.37x = 950,147.31 × 382,613.37
  4. Step 4: Simplify right side
    688,556.37x = 363,539,067,491.86
  5. Step 5: Solve for x
    x = 363,539,067,491.86/688,556.37
  6. Step 6: Final answer
    x = 527,972.85

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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.