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Finding the Fourth Proportional to 692,704.91, 955,679.91 and 406,169.44

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Solution

The fourth proportional to 692,704.91, 955,679.91 and 406,169.44 is: 560,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,704.91 : 955,679.91 = 406,169.44 : x
  2. Step 2: Convert to fraction form
    692,704.91/955,679.91 = 406,169.44/x
  3. Step 3: Cross multiply
    692,704.91x = 955,679.91 × 406,169.44
  4. Step 4: Simplify right side
    692,704.91x = 388,167,973,863.95
  5. Step 5: Solve for x
    x = 388,167,973,863.95/692,704.91
  6. Step 6: Final answer
    x = 560,365.56

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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.