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Finding the Fourth Proportional to 512,751.11, 707,610.83 and 283,323.15

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Solution

The fourth proportional to 512,751.11, 707,610.83 and 283,323.15 is: 390,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,751.11 : 707,610.83 = 283,323.15 : x
  2. Step 2: Convert to fraction form
    512,751.11/707,610.83 = 283,323.15/x
  3. Step 3: Cross multiply
    512,751.11x = 707,610.83 × 283,323.15
  4. Step 4: Simplify right side
    512,751.11x = 200,482,527,913.10
  5. Step 5: Solve for x
    x = 200,482,527,913.10/512,751.11
  6. Step 6: Final answer
    x = 390,993.85

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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.