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Finding the Fourth Proportional to 635,834.91, 877,462.13 and 345,452.23

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Solution

The fourth proportional to 635,834.91, 877,462.13 and 345,452.23 is: 476,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,834.91 : 877,462.13 = 345,452.23 : x
  2. Step 2: Convert to fraction form
    635,834.91/877,462.13 = 345,452.23/x
  3. Step 3: Cross multiply
    635,834.91x = 877,462.13 × 345,452.23
  4. Step 4: Simplify right side
    635,834.91x = 303,121,247,134.87
  5. Step 5: Solve for x
    x = 303,121,247,134.87/635,834.91
  6. Step 6: Final answer
    x = 476,729.48

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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.