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Finding the Fourth Proportional to 932.43, 1,399.55 and 710.99

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Solution

The fourth proportional to 932.43, 1,399.55 and 710.99 is: 1,067.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.43 : 1,399.55 = 710.99 : x
  2. Step 2: Convert to fraction form
    932.43/1,399.55 = 710.99/x
  3. Step 3: Cross multiply
    932.43x = 1,399.55 × 710.99
  4. Step 4: Simplify right side
    932.43x = 995,055.50
  5. Step 5: Solve for x
    x = 995,055.50/932.43
  6. Step 6: Final answer
    x = 1,067.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.